{"title":"2-Stroke Piston Kits","description":"\u003cp\u003eShop Vertex 2-Stroke Piston Kits – complete replacement kits for motocross and enduro bikes. Ensure maximum performance, durability, and reliability with high-quality components.\u003c\/p\u003e","products":[{"product_id":"vertex-piston-kit-mx-honda","title":"Vertex 2 Stroke Piston Kit - Honda 85cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for Honda 85cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"CR 80 86-02 | Size A - 45.94mm","offer_id":40834243002479,"sku":"22446A","price":79.99,"currency_code":"GBP","in_stock":true},{"title":"CR 80 86-02 | Size B - 45.95mm","offer_id":40834243035247,"sku":"22446B","price":79.99,"currency_code":"GBP","in_stock":true},{"title":"CR 80 86-02 | Size C - 45.96mm","offer_id":40834243068015,"sku":"22446C","price":79.99,"currency_code":"GBP","in_stock":true},{"title":"CR 85 03-07 | Size A - 47.44mm","offer_id":40834243100783,"sku":"160027A","price":79.99,"currency_code":"GBP","in_stock":true},{"title":"CR 85 03-07 | Size B - 47.45mm","offer_id":40834243133551,"sku":"160027B","price":79.99,"currency_code":"GBP","in_stock":true},{"title":"CR 85 03-07 | Size C - 47.46mm","offer_id":40834243166319,"sku":"160027C","price":79.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-85-1.jpg?v=1777474926"},{"product_id":"vertex-piston-kit-honda-125cc","title":"Vertex 2 Stroke Piston Kit - Honda 250cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for Honda 250cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"CR 250 86-94 | Size A - 66.34mm","offer_id":40834249785455,"sku":"22153A","price":134.99,"currency_code":"GBP","in_stock":true},{"title":"CR 250 86-94 | Size B - 66.35mm","offer_id":40834249818223,"sku":"22153B","price":134.99,"currency_code":"GBP","in_stock":true},{"title":"CR 250 86-94 | Size C - 66.36mm","offer_id":40834249850991,"sku":"22153C","price":134.99,"currency_code":"GBP","in_stock":true},{"title":"CR 250 95-96 | Size A - 66.34mm","offer_id":40834249883759,"sku":"160018A","price":134.99,"currency_code":"GBP","in_stock":true},{"title":"CR 250 95-96 | Size B - 66.35mm","offer_id":40834249916527,"sku":"160018B","price":134.99,"currency_code":"GBP","in_stock":true},{"title":"CR 250 95-96 | Size C - 66.36mm","offer_id":40834249949295,"sku":"160018C","price":134.99,"currency_code":"GBP","in_stock":false},{"title":"CR 250 97-01 | Size A - 66.34mm","offer_id":40834249982063,"sku":"22581A","price":134.99,"currency_code":"GBP","in_stock":true},{"title":"CR 250 97-01 | Size B - 66.35mm","offer_id":40834250014831,"sku":"22581B","price":134.99,"currency_code":"GBP","in_stock":true},{"title":"CR 250 97-01 | Size C - 66.36mm","offer_id":40834250047599,"sku":"22581C","price":134.99,"currency_code":"GBP","in_stock":false},{"title":"CR 250 02-04 | Size A - 66.34mm","offer_id":40834250080367,"sku":"160005A","price":134.99,"currency_code":"GBP","in_stock":false},{"title":"CR 250 02-04 | Size B - 66.35mm","offer_id":40834250113135,"sku":"160005B","price":134.99,"currency_code":"GBP","in_stock":false},{"title":"CR 250 02-04 | Size C - 66.36mm","offer_id":40834250145903,"sku":"160005C","price":134.99,"currency_code":"GBP","in_stock":false},{"title":"CR 250 05-07 | Size A - 66.34mm","offer_id":40834250178671,"sku":"160013A","price":134.99,"currency_code":"GBP","in_stock":false},{"title":"CR 250 05-07 | Size B - 66.35mm","offer_id":40834250211439,"sku":"160013B","price":134.99,"currency_code":"GBP","in_stock":false},{"title":"CR 250 05-07 | Size C - 66.36mm","offer_id":40834250244207,"sku":"160013C","price":134.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-250-1.jpg?v=1777469090"},{"product_id":"vertex-2-stroke-piston-kit-honda-125cc","title":"Vertex 2 Stroke Piston Kit - Honda 125cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for Honda 125cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"CR 125 90-91 | Size A - 53.93mm","offer_id":40834253914223,"sku":"22151A","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"CR 125 90-91 | Size B - 53.94mm","offer_id":40834253946991,"sku":"22151B","price":109.99,"currency_code":"GBP","in_stock":false},{"title":"CR 125 90-91 | Size C - 53.95mm","offer_id":40834253979759,"sku":"22151C","price":109.99,"currency_code":"GBP","in_stock":false},{"title":"CR 125 92-99 | Size A - 53.93mm","offer_id":40834254012527,"sku":"160001A","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"CR 125 92-99 | Size B - 53.94mm","offer_id":40834254045295,"sku":"160001B","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"CR 125 92-99 | Size C - 53.95mm","offer_id":40834254078063,"sku":"160001C","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"CR 125 00-03 | Size A - 53.92mm","offer_id":40834254110831,"sku":"160386A","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"CR 125 00-03 | Size B - 53.93mm","offer_id":40834254143599,"sku":"160386B","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"CR 125 00-03 | Size C - 53.94mm","offer_id":40834254176367,"sku":"160386C","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"CR 125 04 | Size A - 53.92mm","offer_id":40834254209135,"sku":"22995A","price":109.99,"currency_code":"GBP","in_stock":false},{"title":"CR 125 04 | Size B - 53.93mm","offer_id":40834254241903,"sku":"22995B","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"CR 125 04 | Size C - 53.94mm","offer_id":40834254274671,"sku":"22995C","price":109.99,"currency_code":"GBP","in_stock":false},{"title":"CR 125 05-07 | Size A - 53.92mm","offer_id":40834254307439,"sku":"23140A","price":119.99,"currency_code":"GBP","in_stock":true},{"title":"CR 125 05-07 | Size B - 53.93mm","offer_id":40834254340207,"sku":"23140B","price":119.99,"currency_code":"GBP","in_stock":true},{"title":"CR 125 05-07 | Size C - 53.94mm","offer_id":40834254372975,"sku":"23140C","price":119.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-125-1.jpg?v=1777471851"},{"product_id":"vertex-2-stroke-piston-kit-kawasaki-65cc","title":"Vertex 2 Stroke Piston Kit - Kawasaki 65cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for Kawasaki 65cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"KX 65 00-22 | Size A - 44.44mm","offer_id":40834276098159,"sku":"160026A","price":59.99,"currency_code":"GBP","in_stock":true},{"title":"KX 65 00-22 | Size B - 44.45mm","offer_id":40834276130927,"sku":"160026B","price":59.99,"currency_code":"GBP","in_stock":true},{"title":"KX 65 00-22 | Size C - 44.46mm","offer_id":40834276163695,"sku":"160026C","price":59.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-65-1.jpg?v=1777474439"},{"product_id":"vertex-2-stroke-piston-kit-kawasaki-85cc","title":"Vertex 2 Stroke Piston Kit - Kawasaki 85cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for Kawasaki 85cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"KX 85 01-13 | Size A - 48.44mm","offer_id":40834276622447,"sku":"160023A","price":74.99,"currency_code":"GBP","in_stock":true},{"title":"KX 85 01-13 | Size B - 48.45mm","offer_id":40834276655215,"sku":"160023B","price":74.99,"currency_code":"GBP","in_stock":true},{"title":"KX 85 01-13 | Size C - 48.46mm","offer_id":40834276687983,"sku":"160023C","price":74.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-85-1.jpg?v=1777474926"},{"product_id":"vertex-2-stroke-piston-kit-kawasaki-125cc","title":"Vertex 2 Stroke Piston Kit - Kawasaki 125cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for Kawasaki 125cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"KX 125 92-93 | Size A - 53.95mm","offer_id":40834278293615,"sku":"22248A","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"KX 125 92-93 | Size B - 53.96mm","offer_id":40834278326383,"sku":"22248B","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"KX 125 92-93 | Size C - 53.97mm","offer_id":40834278359151,"sku":"22248C","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"KX 125 94 | Size A - 53.95mm","offer_id":40834278391919,"sku":"22245A","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"KX 125 94 | Size B - 53.96mm","offer_id":40834278424687,"sku":"22245B","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"KX 125 94 | Size C - 53.97mm","offer_id":40834278457455,"sku":"22245C","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"KX 125 95-97 | Size A - 53.95mm","offer_id":40834278490223,"sku":"160375B","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"KX 125 95-97 | Size B - 53.96mm","offer_id":40834278522991,"sku":"160375B","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"KX 125 95-97 | Size C - 53.97mm","offer_id":40834278555759,"sku":"160375C","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"KX 125 98 | Size A - 53.95mm","offer_id":40834278588527,"sku":"22509A","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"KX 125 98 | Size B - 53.96mm","offer_id":40834278621295,"sku":"22509B","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"KX 125 98 | Size C - 53.97mm","offer_id":40834278654063,"sku":"22509C","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"KX 125 99-00 | Size A - 53.95mm","offer_id":40834278686831,"sku":"160382A","price":199.99,"currency_code":"GBP","in_stock":true},{"title":"KX 125 99-00 | Size B - 53.96mm","offer_id":40834278719599,"sku":"160382B","price":199.99,"currency_code":"GBP","in_stock":true},{"title":"KX 125 99-00 | Size C - 53.97mm","offer_id":40834278752367,"sku":"160382C","price":199.99,"currency_code":"GBP","in_stock":true},{"title":"KX 125 01-02 | Size A - 53.95mm","offer_id":40834278785135,"sku":"22712A","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"KX 125 01-02 | Size B - 53.96mm","offer_id":40834278817903,"sku":"22712B","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"KX 125 01-02 | Size C - 53.97mm","offer_id":40834278850671,"sku":"22712C","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"KX 125 03-08 | Size A - 53.95mm","offer_id":40834278883439,"sku":"160009A","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"KX 125 03-08 | Size B - 53.96mm","offer_id":40834278916207,"sku":"160009B","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"KX 125 03-08 | Size C - 53.97mm","offer_id":40834278948975,"sku":"160009C","price":109.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-125-1.jpg?v=1777471851"},{"product_id":"vertex-2-stroke-piston-kit-kawasaki-250cc","title":"Vertex 2 Stroke Piston Kit - Kawasaki 250cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for Kawasaki 250cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"KX 250 92-97 | Size A - 66.35mm","offer_id":40834281078895,"sku":"160372A","price":129.99,"currency_code":"GBP","in_stock":true},{"title":"KX 250 92-97 | Size B - 66.36mm","offer_id":40834281111663,"sku":"160372B","price":129.99,"currency_code":"GBP","in_stock":true},{"title":"KX 250 92-97 | Size C - 66.37mm","offer_id":40834281144431,"sku":"160372C","price":129.99,"currency_code":"GBP","in_stock":true},{"title":"KX 250 98-01 | Size A - 66.35mm","offer_id":40834281177199,"sku":"22521A","price":129.99,"currency_code":"GBP","in_stock":false},{"title":"KX 250 98-01 | Size B - 66.36mm","offer_id":40834281209967,"sku":"22521B","price":129.99,"currency_code":"GBP","in_stock":false},{"title":"KX 250 98-01 | Size C - 66.37mm","offer_id":40834281242735,"sku":"22521C","price":129.99,"currency_code":"GBP","in_stock":false},{"title":"KX 250 02-04 | Size A - 66.35mm","offer_id":40834281275503,"sku":"160372A","price":129.99,"currency_code":"GBP","in_stock":true},{"title":"KX 250 02-04 | Size B - 66.36mm","offer_id":40834281308271,"sku":"160372B","price":129.99,"currency_code":"GBP","in_stock":true},{"title":"KX 250 02-04 | Size C - 66.37mm","offer_id":40834281341039,"sku":"160372C","price":129.99,"currency_code":"GBP","in_stock":true},{"title":"KX 250 05-08 | Size A - 66.35mm","offer_id":40834281373807,"sku":"160011A","price":129.99,"currency_code":"GBP","in_stock":true},{"title":"KX 250 05-08 | Size B - 66.36mm","offer_id":40834281406575,"sku":"160011B","price":129.99,"currency_code":"GBP","in_stock":true},{"title":"KX 250 05-08 | Size C - 66.37mm","offer_id":40834281439343,"sku":"160011C","price":129.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-250-1.jpg?v=1777469090"},{"product_id":"vertex-2-stroke-piston-kit-ktm-50cc","title":"Vertex 2 Stroke Piston Kit - KTM 50cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for KTM 50cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"SX 50 01-08 | Size AB - 39.46mm","offer_id":40834295824495,"sku":"160025A","price":49.99,"currency_code":"GBP","in_stock":true},{"title":"SX 50 01-08 | Size CD - 39.47mm","offer_id":40834295857263,"sku":"160025C","price":49.99,"currency_code":"GBP","in_stock":true},{"title":"SX 50 01-08 | Size EF - 39.48mm","offer_id":40834295890031,"sku":"160025E","price":49.99,"currency_code":"GBP","in_stock":true},{"title":"SX 50 09-Current | Size AB - 39.46mm","offer_id":40834295922799,"sku":"160037A","price":49.99,"currency_code":"GBP","in_stock":true},{"title":"SX 50 09-Current | Size CD - 39.47mm","offer_id":40834295955567,"sku":"160037C","price":49.99,"currency_code":"GBP","in_stock":true},{"title":"SX 50 09-Current | Size EF - 39.48mm","offer_id":40834295988335,"sku":"160037E","price":49.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-50-1_228d3c56-bc4c-402a-b200-f1ae8c9e5e67.jpg?v=1777474124"},{"product_id":"vertex-2-stroke-piston-kit-ktm-65cc","title":"Vertex 2 Stroke Piston Kit - KTM 65cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for KTM 65cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"SX 60 97-08 | Size A - 43.46mm","offer_id":40834297102447,"sku":"22402A","price":49.99,"currency_code":"GBP","in_stock":false},{"title":"SX 60 97-08 | Size B - 43.47mm","offer_id":40834297135215,"sku":"22402B","price":49.99,"currency_code":"GBP","in_stock":false},{"title":"SX 60 97-08 | Size C - 43.48mm","offer_id":40834297167983,"sku":"22402C","price":49.99,"currency_code":"GBP","in_stock":false},{"title":"SX 65 09-Current | Size AB - 44.96mm","offer_id":40834297200751,"sku":"160038A","price":49.99,"currency_code":"GBP","in_stock":true},{"title":"SX 65 09-Current | Size CD - 44.97mm","offer_id":40834297233519,"sku":"160038C","price":49.99,"currency_code":"GBP","in_stock":true},{"title":"SX 65 09-Current | Size EF - 44.98mm","offer_id":40834297266287,"sku":"160038E","price":49.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-65-1.jpg?v=1777474439"},{"product_id":"vertex-2-stroke-piston-kit-ktm-85cc","title":"Vertex 2 Stroke Piston Kit - KTM 85cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for KTM 85cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"SX 85 03-25 | Size A - 46.94mm","offer_id":40834298740847,"sku":"160069A","price":74.99,"currency_code":"GBP","in_stock":true},{"title":"SX 85 03-25 | Size B - 46.95mm","offer_id":40834298773615,"sku":"160069B","price":74.99,"currency_code":"GBP","in_stock":true},{"title":"SX 85 03-25 | Size C - 46.96mm","offer_id":40834298806383,"sku":"160069C","price":74.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-85-1.jpg?v=1777474926"},{"product_id":"vertex-2-stroke-piston-kit-ktm-125cc","title":"Vertex 2 Stroke Piston Kit - KTM 125cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for KTM 125cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"SX 125 01-Current | Size A - 53.94mm","offer_id":40834300084335,"sku":"160052A","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"SX 125 01-Current | Size B - 53.95mm","offer_id":40834300117103,"sku":"160052B","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"SX 125 01-Current | Size C - 53.96mm","offer_id":40834300149871,"sku":"160052C","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"SX 125 01-Current | Size D - 53.97mm","offer_id":56225202635131,"sku":"160052D","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"EXC 125 01-Current | Size A - 53.94mm","offer_id":40834299986031,"sku":"160052A","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"EXC 125 01-Current | Size B - 53.95mm","offer_id":40834300018799,"sku":"160052B","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"EXC 125 01-Current | Size C - 53.96mm","offer_id":40834300051567,"sku":"160052C","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"EXC 125 01-Current | Size D - 53.97mm","offer_id":56225202831739,"sku":"160052D","price":109.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-125-1.jpg?v=1777471851"},{"product_id":"vertex-2-stroke-piston-kit-ktm-250cc","title":"Vertex 2 Stroke Piston Kit - KTM 250cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for KTM 250cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"SX 250 90-94 | Size A - 67.44mm","offer_id":40834302967919,"sku":"22442A","price":129.99,"currency_code":"GBP","in_stock":false},{"title":"SX 250 90-94 | Size B - 67.45mm","offer_id":40834303000687,"sku":"22442B","price":129.99,"currency_code":"GBP","in_stock":false},{"title":"SX 250 90-94 | Size C - 67.46mm","offer_id":40834303033455,"sku":"22442C","price":129.99,"currency_code":"GBP","in_stock":false},{"title":"SX 250 96-99 | Size A - 67.44mm","offer_id":40834303066223,"sku":"22459A","price":134.99,"currency_code":"GBP","in_stock":true},{"title":"SX 250 96-99 | Size B - 67.45mm","offer_id":40834303098991,"sku":"22459B","price":134.99,"currency_code":"GBP","in_stock":true},{"title":"SX 250 96-99 | Size C - 67.46mm","offer_id":40834303131759,"sku":"22459C","price":134.99,"currency_code":"GBP","in_stock":false},{"title":"SX 250 00-02 | Size A - 66.34mm","offer_id":40834303164527,"sku":"22649A","price":134.99,"currency_code":"GBP","in_stock":false},{"title":"SX 250 00-02 | Size B - 66.35mm","offer_id":40834303197295,"sku":"22649B","price":134.99,"currency_code":"GBP","in_stock":false},{"title":"SX 250 00-02 | Size C - 66.36mm","offer_id":40834303230063,"sku":"22649C","price":134.99,"currency_code":"GBP","in_stock":false},{"title":"SX 250 03-04 | Size A - 66.34mm","offer_id":40834303262831,"sku":"22909A","price":134.99,"currency_code":"GBP","in_stock":false},{"title":"SX 250 03-04 | Size B - 66.35mm","offer_id":40834303295599,"sku":"22909B","price":134.99,"currency_code":"GBP","in_stock":false},{"title":"SX 250 03-04 | Size C - 66.36mm","offer_id":40834303328367,"sku":"22909C","price":134.99,"currency_code":"GBP","in_stock":false},{"title":"SX 250 05 | Size A - 66.34mm","offer_id":40834303361135,"sku":"23121A","price":134.99,"currency_code":"GBP","in_stock":false},{"title":"SX 250 05 | Size B - 66.35mm","offer_id":40834303393903,"sku":"23121B","price":134.99,"currency_code":"GBP","in_stock":false},{"title":"SX 250 05 | Size C - 66.36mm","offer_id":40834303426671,"sku":"23121C","price":134.99,"currency_code":"GBP","in_stock":false},{"title":"SX 250 06-Current | Size A - 66.34mm","offer_id":40834303459439,"sku":"23630A","price":129.99,"currency_code":"GBP","in_stock":true},{"title":"SX 250 06-Current | Size B - 66.35mm","offer_id":40834303492207,"sku":"23630B","price":129.99,"currency_code":"GBP","in_stock":true},{"title":"SX 250 06-Current | Size C - 66.36mm","offer_id":40834303524975,"sku":"23630C","price":129.99,"currency_code":"GBP","in_stock":true},{"title":"EXC 250 96-99 | Size A - 67.44mm","offer_id":40834303557743,"sku":"22459A","price":129.99,"currency_code":"GBP","in_stock":true},{"title":"EXC 250 96-99 | Size B - 67.45mm","offer_id":40834303590511,"sku":"22459B","price":129.99,"currency_code":"GBP","in_stock":true},{"title":"EXC 250 96-99 | Size C - 67.46mm","offer_id":40834303623279,"sku":"22459C","price":129.99,"currency_code":"GBP","in_stock":false},{"title":"EXC 250 00-05 | Size A - 66.34mm","offer_id":40834303656047,"sku":"22650A","price":129.99,"currency_code":"GBP","in_stock":true},{"title":"EXC 250 00-05 | Size B - 66.35mm","offer_id":40834303688815,"sku":"22650B","price":129.99,"currency_code":"GBP","in_stock":true},{"title":"EXC 250 00-05 | Size C - 66.36mm","offer_id":40834303721583,"sku":"22650C","price":129.99,"currency_code":"GBP","in_stock":false},{"title":"EXC 250 06-Current | Size A - 66.34mm","offer_id":40834303754351,"sku":"160015A","price":124.99,"currency_code":"GBP","in_stock":true},{"title":"EXC 250 06-Current | Size B - 66.35mm","offer_id":40834303787119,"sku":"160015B","price":124.99,"currency_code":"GBP","in_stock":true},{"title":"EXC 250 06-Current | Size C - 66.36mm","offer_id":40834303819887,"sku":"160015C","price":124.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-250-1.jpg?v=1777469090"},{"product_id":"copy-of-vertex-2-stroke-piston-kit-ktm-200cc","title":"Vertex 2 Stroke Piston Kit - KTM 200cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for KTM 200cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"EXC 200 98-16 | Size A - 63.94mm","offer_id":40834307326063,"sku":"160029A","price":129.99,"currency_code":"GBP","in_stock":true},{"title":"EXC 200 98-16 | Size B - 63.95mm","offer_id":40834307358831,"sku":"160029B","price":129.99,"currency_code":"GBP","in_stock":true},{"title":"EXC 200 98-16 | Size C - 63.96mm","offer_id":40834307391599,"sku":"160029C","price":129.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-200-1.jpg?v=1777472411"},{"product_id":"vertex-2-stroke-piston-kit-ktm-150cc","title":"Vertex 2 Stroke Piston Kit - KTM 150cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for KTM 150cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"SX 144 07-15 | Size A - 55.95mm","offer_id":40834308538479,"sku":"160397A","price":124.99,"currency_code":"GBP","in_stock":true},{"title":"SX 144 07-15 | Size B - 55.96mm","offer_id":40834308571247,"sku":"160397B","price":124.99,"currency_code":"GBP","in_stock":true},{"title":"SX 144 07-15 | Size C - 55.97mm","offer_id":40834308604015,"sku":"160397C","price":124.99,"currency_code":"GBP","in_stock":true},{"title":"SX 150 07-15 | Size A - 55.95mm","offer_id":56225205158267,"sku":"160397A","price":124.99,"currency_code":"GBP","in_stock":true},{"title":"SX 150 07-15 | Size B - 55.96mm","offer_id":56225205256571,"sku":"160397B","price":124.99,"currency_code":"GBP","in_stock":true},{"title":"SX 150 07-15 | Size C - 55.97mm","offer_id":56225205420411,"sku":"160397C","price":124.99,"currency_code":"GBP","in_stock":true},{"title":"SX 150 16-22 | Size A - 57.94mm","offer_id":40834308636783,"sku":"160407A","price":124.99,"currency_code":"GBP","in_stock":true},{"title":"SX 150 16-22 | Size B - 57.95mm","offer_id":40834308669551,"sku":"160407B","price":124.99,"currency_code":"GBP","in_stock":true},{"title":"SX 150 16-22 | Size C - 57.96mm","offer_id":40834308702319,"sku":"160407C","price":124.99,"currency_code":"GBP","in_stock":true},{"title":"EXC 150 17-20 | Size A - 57.94mm","offer_id":40834308735087,"sku":"160407A","price":124.99,"currency_code":"GBP","in_stock":true},{"title":"EXC 150 17-20 | Size B - 57.95mm","offer_id":40834308767855,"sku":"160407B","price":124.99,"currency_code":"GBP","in_stock":true},{"title":"EXC 150 17-20 | Size C - 57.96mm","offer_id":40834308800623,"sku":"160407C","price":124.99,"currency_code":"GBP","in_stock":true},{"title":"EXC 150 21-25 | Size A - 57.94mm","offer_id":40834308833391,"sku":"160412A","price":119.99,"currency_code":"GBP","in_stock":true},{"title":"EXC 150 21-25 | Size B - 57.95mm","offer_id":40834308866159,"sku":"160412B","price":119.99,"currency_code":"GBP","in_stock":true},{"title":"EXC 150 21-25 | Size C - 57.96mm","offer_id":40834308898927,"sku":"160412C","price":119.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-150-1.jpg?v=1777476449"},{"product_id":"vertex-2-stroke-piston-kit-husqvarna-50cc","title":"Vertex 2 Stroke Piston Kit - Husqvarna 50cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for Husqvarna 50cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"TC 50 17-Current | Size AB - 39.46mm","offer_id":40834963832943,"sku":"160037A","price":49.99,"currency_code":"GBP","in_stock":true},{"title":"TC 50 17-Current | Size CD - 39.47mm","offer_id":40834963865711,"sku":"160037A","price":49.99,"currency_code":"GBP","in_stock":true},{"title":"TC 50 17-Current | Size EF - 39.48mm","offer_id":40834963898479,"sku":"160037A","price":49.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-50-1_228d3c56-bc4c-402a-b200-f1ae8c9e5e67.jpg?v=1777474124"},{"product_id":"vertex-2-stroke-piston-kit-husqvarna-65cc","title":"Vertex 2 Stroke Piston Kit - Husqvarna 65cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for Husqvarna 65cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"TC 65 17-Current | Size AB - 44.96mm","offer_id":40834964586607,"sku":"160038A","price":49.99,"currency_code":"GBP","in_stock":true},{"title":"TC 65 17-Current | Size CD - 44.97mm","offer_id":40834964619375,"sku":"160038C","price":49.99,"currency_code":"GBP","in_stock":true},{"title":"TC 65 17-Current | Size EF - 44.98mm","offer_id":40834964652143,"sku":"160038E","price":49.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-65-1.jpg?v=1777474439"},{"product_id":"vertex-2-stroke-piston-kit-husqvarna-85cc","title":"Vertex 2 Stroke Piston Kit - Husqvarna 85cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for Husqvarna 85cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"TC 85 03-25 | Size A - 46.94mm","offer_id":40834966913135,"sku":"160069A","price":74.99,"currency_code":"GBP","in_stock":true},{"title":"TC 85 03-25 | Size B - 46.95mm","offer_id":40834966945903,"sku":"160069B","price":74.99,"currency_code":"GBP","in_stock":true},{"title":"TC 85 03-25 | Size C - 46.96mm","offer_id":40834966978671,"sku":"160069C","price":74.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-85-1.jpg?v=1777474926"},{"product_id":"vertex-2-stroke-piston-kit-husqvarna-125cc","title":"Vertex 2 Stroke Piston Kit - Husqvarna 125cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for Husqvarna 125cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"TC 125 14-Current | Size A - 53.94mm","offer_id":40834982248559,"sku":"160052A","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"TC 125 14-Current | Size B - 53.95mm","offer_id":40834982281327,"sku":"160052B","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"TC 125 14-Current | Size C - 53.96mm","offer_id":40834982314095,"sku":"160052C","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"TC 125 14-Current | Size D - 53.97mm","offer_id":40834982379631,"sku":"160052D","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"TE 125 14-Current | Size A - 53.94mm","offer_id":40834982150255,"sku":"160052A","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"TE 125 14-Current | Size B - 53.95mm","offer_id":40834982183023,"sku":"160052B","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"TE 125 14-Current | Size C - 53.96mm","offer_id":40834982215791,"sku":"160052C","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"TE 125 14-Current | Size D - 53.97mm","offer_id":56226566013307,"sku":"160052D","price":109.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-125-1.jpg?v=1777471851"},{"product_id":"vertex-2-stroke-piston-kit-husqvarna-150cc","title":"Vertex 2 Stroke Piston Kit - Husqvarna 150cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for Husqvarna 150cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"TE 150 17-19 | Size A - 57.94mm","offer_id":40835023569007,"sku":"160407A","price":129.99,"currency_code":"GBP","in_stock":true},{"title":"TE 150 17-19 | Size B - 57.95mm","offer_id":40835023601775,"sku":"160407B","price":129.99,"currency_code":"GBP","in_stock":true},{"title":"TE 150 17-19 | Size C - 57.96mm","offer_id":40835023634543,"sku":"160407C","price":129.99,"currency_code":"GBP","in_stock":true},{"title":"TE 150 20-25 | Size A - 57.94mm","offer_id":40835023732847,"sku":"160412A","price":124.99,"currency_code":"GBP","in_stock":true},{"title":"TE 150 20-25 | Size B - 57.95mm","offer_id":40835023765615,"sku":"160412B","price":124.99,"currency_code":"GBP","in_stock":true},{"title":"TE 150 20-25 | Size C - 57.96mm","offer_id":40835023798383,"sku":"160412C","price":124.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-150-1.jpg?v=1777476449"},{"product_id":"vertex-2-stroke-piston-kit-husqvarna-250cc","title":"Vertex 2 Stroke Piston Kit - Husqvarna 250cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for Husqvarna 250cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"TC 250 14-Current | Size A - 66.34mm","offer_id":40835029303407,"sku":"23630A","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"TC 250 06-Current | Size B - 66.35mm","offer_id":40835029336175,"sku":"23630B","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"TC 250 06-Current | Size C - 66.36mm","offer_id":40835029368943,"sku":"23630C","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"TE 250 06-Current | Size A - 66.34mm","offer_id":40835029598319,"sku":"23630A","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"TE 250 06-Current | Size B - 66.35mm","offer_id":40835029631087,"sku":"23630B","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"TE 250 06-Current | Size C - 66.36mm","offer_id":40835029663855,"sku":"23630C","price":109.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-250-1_0d89aa74-045b-4be6-a2cb-a77ecf460adf.jpg?v=1777470065"},{"product_id":"vertex-2-stroke-piston-kit-ktm-300cc","title":"Vertex 2 Stroke Piston Kit - KTM 300cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for KTM 300cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"EXC 300 04-17 | Size A - 71.94mm","offer_id":40835040313455,"sku":"160035A","price":149.99,"currency_code":"GBP","in_stock":true},{"title":"EXC 300 04-17 | Size B - 71.95mm","offer_id":40835040346223,"sku":"160035B","price":149.99,"currency_code":"GBP","in_stock":true},{"title":"EXC 300 04-17 | Size C - 71.96mm","offer_id":40835040378991,"sku":"160035C","price":149.99,"currency_code":"GBP","in_stock":true},{"title":"EXC 300 18-25 | Size A - 71.925mm","offer_id":40835040411759,"sku":"160072A","price":159.99,"currency_code":"GBP","in_stock":true},{"title":"EXC 300 18-25 | Size B - 71.935mm","offer_id":40835040444527,"sku":"160072B","price":159.99,"currency_code":"GBP","in_stock":true},{"title":"EXC 300 18-25 | Size C - 71.945mm","offer_id":40835040477295,"sku":"160072C","price":159.99,"currency_code":"GBP","in_stock":true},{"title":"EXC 300 26-Current | Size A - 71.925mm","offer_id":56225328824699,"sku":"24744A","price":169.99,"currency_code":"GBP","in_stock":true},{"title":"EXC 300 26-Current | Size B - 71.935mm","offer_id":56225328857467,"sku":"24744B","price":169.99,"currency_code":"GBP","in_stock":true},{"title":"EXC 300 26-Current | Size C - 71.945mm","offer_id":56225328890235,"sku":"24744C","price":169.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-300-1.jpg?v=1777467490"},{"product_id":"vertex-2-stroke-piston-kit-husqvarna-300cc","title":"Vertex 2 Stroke Piston Kit - Husqvarna 300cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for Husqvarna 300cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"TE 300 14-18 | Size A - 71.94mm","offer_id":40835049783407,"sku":"160035A","price":149.99,"currency_code":"GBP","in_stock":true},{"title":"TE 300 14-18 | Size B - 71.95mm","offer_id":40835049816175,"sku":"160035B","price":149.99,"currency_code":"GBP","in_stock":true},{"title":"TE 300 14-18 | Size C - 71.96mm","offer_id":40835049848943,"sku":"160035C","price":149.99,"currency_code":"GBP","in_stock":true},{"title":"TE 300 18-25 | Size A - 71.925mm","offer_id":40835049881711,"sku":"160072A","price":159.99,"currency_code":"GBP","in_stock":true},{"title":"TE 300 18-25 | Size B - 71.935mm","offer_id":40835049914479,"sku":"160072B","price":159.99,"currency_code":"GBP","in_stock":true},{"title":"TE 300 18-25 | Size C - 71.945mm","offer_id":40835049947247,"sku":"160072C","price":159.99,"currency_code":"GBP","in_stock":true},{"title":"TE 300 26-Current | Size A - 71.925mm","offer_id":56226599797115,"sku":"24744A","price":169.99,"currency_code":"GBP","in_stock":true},{"title":"TE 300 26-Current | Size B - 71.935mm","offer_id":56226599829883,"sku":"24744B","price":169.99,"currency_code":"GBP","in_stock":true},{"title":"TE 300 26-Current | Size C - 71.945mm","offer_id":56226599862651,"sku":"24744C","price":169.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-300-1.jpg?v=1777467490"},{"product_id":"vertex-2-stroke-piston-kit-gasgas-85cc","title":"Vertex 2 Stroke Piston Kit - GasGas 85cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for GasGas 85cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"MC 85 21-25 | Size A - 46.94mm","offer_id":40835066069103,"sku":"160069A","price":74.99,"currency_code":"GBP","in_stock":true},{"title":"MC 85 21-25 | Size B - 46.95mm","offer_id":40835066101871,"sku":"160069B","price":74.99,"currency_code":"GBP","in_stock":true},{"title":"MC 85 21-25 | Size C - 46.96mm","offer_id":40835066134639,"sku":"160069C","price":74.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-85-1.jpg?v=1777474926"},{"product_id":"vertex-2-stroke-piston-kit-gasgas-125cc","title":"Vertex 2 Stroke Piston Kit - GasGas 125cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for GasGas 125cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"MC 125 21-Current | Size A - 53.94mm","offer_id":40835071410287,"sku":"160052A","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"MC 125 21-Current | Size B - 53.95mm","offer_id":40835071443055,"sku":"160052A","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"MC 125 21-Current | Size C - 53.96mm","offer_id":40835071475823,"sku":"160052A","price":109.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-125-1.jpg?v=1777471851"},{"product_id":"vertex-2-stroke-piston-kit-gasgas-250cc","title":"Vertex 2 Stroke Piston Kit - GasGas 250cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for GasGas 250cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"MC 250 22-Current | Size A - 66.34mm","offer_id":56226663661947,"sku":"160015A","price":124.99,"currency_code":"GBP","in_stock":true},{"title":"MC 250 22-Current | Size B - 66.35mm","offer_id":56226663694715,"sku":"160015B","price":124.99,"currency_code":"GBP","in_stock":true},{"title":"MC 250 22-Current | Size C - 66.36mm","offer_id":56226663727483,"sku":"160015C","price":124.99,"currency_code":"GBP","in_stock":true},{"title":"EC 250 06-19 | Size A - 66.34mm","offer_id":40835098312815,"sku":"160033A","price":139.99,"currency_code":"GBP","in_stock":true},{"title":"EC 250 06-19 | Size B - 66.35mm","offer_id":40835098345583,"sku":"160033B","price":139.99,"currency_code":"GBP","in_stock":true},{"title":"EC 250 06-19 | Size C - 66.36mm","offer_id":40835098378351,"sku":"160033C","price":139.99,"currency_code":"GBP","in_stock":true},{"title":"EC 250 21-Current | Size A - 66.34mm","offer_id":40835077177455,"sku":"160015A","price":124.99,"currency_code":"GBP","in_stock":true},{"title":"EC 250 21-Current | Size B - 66.35mm","offer_id":40835077210223,"sku":"160015B","price":124.99,"currency_code":"GBP","in_stock":true},{"title":"EC 250 21-Current | Size C - 66.36mm","offer_id":40835077242991,"sku":"160015C","price":124.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-250-1_0d89aa74-045b-4be6-a2cb-a77ecf460adf.jpg?v=1777470065"},{"product_id":"vertex-2-stroke-piston-kit-gasgas-300cc","title":"Vertex 2 Stroke Piston Kit - GasGas 300cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for GasGas 300cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"EC 300 21-25 | Size A - 71.925mm","offer_id":40835091169391,"sku":"24244C","price":159.99,"currency_code":"GBP","in_stock":true},{"title":"EC 300 21-25 | Size B - 71.935mm","offer_id":40835091202159,"sku":"24244C","price":159.99,"currency_code":"GBP","in_stock":true},{"title":"EC 300 21-25 | Size C - 71.945mm","offer_id":40835091234927,"sku":"24244C","price":159.99,"currency_code":"GBP","in_stock":true},{"title":"EC 300 26-Current | Size A - 71.925mm","offer_id":56226622374267,"sku":"24244C","price":169.99,"currency_code":"GBP","in_stock":true},{"title":"EC 300 26-Current | Size B - 71.935mm","offer_id":56226622407035,"sku":"24244C","price":169.99,"currency_code":"GBP","in_stock":true},{"title":"EC 300 26-Current | Size C - 71.945mm","offer_id":56226622439803,"sku":"24244C","price":169.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-300-1.jpg?v=1777467490"},{"product_id":"vertex-2-stroke-piston-kit-beta-250cc","title":"Vertex 2 Stroke Piston Kit - Beta 250cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for Beta 250cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use, from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"RR 250 13-17 | Size A - 66.35mm","offer_id":40835111092335,"sku":"160410A","price":139.99,"currency_code":"GBP","in_stock":true},{"title":"RR 250 13-17 | Size B - 66.36mm","offer_id":40835111125103,"sku":"160410B","price":139.99,"currency_code":"GBP","in_stock":true},{"title":"RR 250 18-Current | Size A - 66.35mm","offer_id":40835111157871,"sku":"160090A","price":134.99,"currency_code":"GBP","in_stock":true},{"title":"RR 250 18-Current | Size B - 66.36mm","offer_id":40835111190639,"sku":"160090B","price":134.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-250-1_0d89aa74-045b-4be6-a2cb-a77ecf460adf.jpg?v=1777470065"},{"product_id":"vertex-2-stroke-piston-kit-beta-300cc","title":"Vertex 2 Stroke Piston Kit - Beta 300cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for Beta 300cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use, from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"RR 300 13-17 | Size A - 71.95mm","offer_id":40835112239215,"sku":"160411A","price":159.99,"currency_code":"GBP","in_stock":false},{"title":"RR 300 13-17 | Size B - 71.96mm","offer_id":40835112271983,"sku":"160411B","price":159.99,"currency_code":"GBP","in_stock":false},{"title":"RR 300 18-21 | Size A - 71.95mm","offer_id":40835112304751,"sku":"160091A","price":159.99,"currency_code":"GBP","in_stock":false},{"title":"RR 300 18-21 | Size B - 71.96mm","offer_id":40835112337519,"sku":"160091B","price":159.99,"currency_code":"GBP","in_stock":true},{"title":"RR 300 18-21 | Size C - 71.97mm","offer_id":56224810369403,"sku":"160091C","price":159.99,"currency_code":"GBP","in_stock":true},{"title":"RR 300 22-Current | Size A - 72.95mm","offer_id":40835112370287,"sku":"160138A","price":159.99,"currency_code":"GBP","in_stock":false},{"title":"RR 300 22-Current | Size B - 72.96mm","offer_id":40835112403055,"sku":"160138B","price":159.99,"currency_code":"GBP","in_stock":false},{"title":"RR 300 22-Current | Size C - 72.97mm","offer_id":56224811483515,"sku":"160138C","price":159.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-300-1.jpg?v=1777467490"},{"product_id":"vertex-2-stroke-piston-kit-beta-125cc","title":"Vertex 2 Stroke Piston Kit - Beta 125cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for Beta 125cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"RR 125 18-Current | Size A - 53.95mm","offer_id":40835118334063,"sku":"160089A","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"RR 125 18-Current | Size B - 53.96mm","offer_id":40835118366831,"sku":"160089B","price":109.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-125-1.jpg?v=1777471851"},{"product_id":"vertex-2-stroke-piston-kit-beta-200cc","title":"Vertex 2 Stroke Piston Kit - Beta 200cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for Beta 200cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use, from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"RR 200 19-Current | Size A - 61.95mm","offer_id":40835119317103,"sku":"160137A","price":129.99,"currency_code":"GBP","in_stock":true},{"title":"RR 200 19-Current | Size B - 61.96mm","offer_id":40835119349871,"sku":"160137B","price":129.99,"currency_code":"GBP","in_stock":true},{"title":"RR 200 19-Current | Size C - 61.97mm","offer_id":40835119382639,"sku":"160137C","price":129.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-200-1.jpg?v=1777472411"},{"product_id":"vertex-2-stroke-piston-kit-yamaha-65cc","title":"Vertex 2 Stroke Piston Kit - Yamaha 65cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for Yamaha 65cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"YZ 65 18-Current | Size A - 43.45mm","offer_id":40835971612783,"sku":"160016A","price":89.99,"currency_code":"GBP","in_stock":true},{"title":"YZ 65 18-Current | Size B - 43.46mm","offer_id":40835971645551,"sku":"160016B","price":89.99,"currency_code":"GBP","in_stock":true},{"title":"YZ 65 18-Current | Size C - 43.47mm","offer_id":40835971678319,"sku":"160016C","price":89.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-65-1.jpg?v=1777474439"},{"product_id":"vertex-2-stroke-piston-kit-yamaha-85cc","title":"Vertex 2 Stroke Piston Kit - Yamaha 85cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for Yamaha 85cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"YZ 85 02-Current | Size A - 47.45mm","offer_id":40835972563055,"sku":"160081A","price":79.99,"currency_code":"GBP","in_stock":true},{"title":"YZ 85 02-Current | Size B - 47.46mm","offer_id":40835972595823,"sku":"160081B","price":79.99,"currency_code":"GBP","in_stock":true},{"title":"YZ 85 02-Current | Size C - 47.47mm","offer_id":40835972628591,"sku":"160081C","price":79.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-85-1.jpg?v=1777474926"},{"product_id":"vertex-2-stroke-piston-kit-yamaha-125cc","title":"Vertex 2 Stroke Piston Kit - Yamaha 125cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for Yamaha 125cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"YZ 125 92-93 | Size A - 55.95mm","offer_id":40835973808239,"sku":"22152A","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"YZ 125 92-93 | Size B - 55.96mm","offer_id":40835973841007,"sku":"22152B","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"YZ 125 92-93 | Size C - 55.97mm","offer_id":40835973873775,"sku":"22152C","price":109.99,"currency_code":"GBP","in_stock":false},{"title":"YZ 125 94-96 | Size A - 55.93mm","offer_id":40835973906543,"sku":"22224A","price":109.99,"currency_code":"GBP","in_stock":false},{"title":"YZ 125 94-96 | Size B - 55.94mm","offer_id":40835973939311,"sku":"22224B","price":109.99,"currency_code":"GBP","in_stock":false},{"title":"YZ 125 94-96 | Size C - 55.95mm","offer_id":40835973972079,"sku":"22224C","price":109.99,"currency_code":"GBP","in_stock":false},{"title":"YZ 125 97 | Size A - 55.93mm","offer_id":40835974004847,"sku":"22441A","price":109.99,"currency_code":"GBP","in_stock":false},{"title":"YZ 125 97 | Size B - 55.94mm","offer_id":40835974037615,"sku":"22441B","price":109.99,"currency_code":"GBP","in_stock":false},{"title":"YZ 125 97 | Size C - 55.95mm","offer_id":40835974070383,"sku":"22441C","price":109.99,"currency_code":"GBP","in_stock":false},{"title":"YZ 125 98-01 | Size A - 55.93mm","offer_id":40835974103151,"sku":"160380A","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"YZ 125 98-01 | Size B - 55.94mm","offer_id":40835974135919,"sku":"160380B","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"YZ 125 98-01 | Size C - 55.95mm","offer_id":40835974168687,"sku":"160380C","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"YZ 125 02-04 | Size A - 53.93mm","offer_id":40835974201455,"sku":"160004A","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"YZ 125 02-04 | Size B - 53.94mm","offer_id":40835974234223,"sku":"160004B","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"YZ 125 02-04 | Size C - 53.95mm","offer_id":40835974266991,"sku":"160004C","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"YZ 125 05-21 | Size A - 53.93mm","offer_id":40835974299759,"sku":"160010A","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"YZ 125 05-21 | Size B - 53.94mm","offer_id":40835974332527,"sku":"160010B","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"YZ 125 05-21 | Size C - 53.95mm","offer_id":40835974365295,"sku":"160010C","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"YZ 125 22-Current | Size A - 53.94mm","offer_id":56228003086715,"sku":"160132A","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"YZ 125 22-Current | Size B - 53.95mm","offer_id":56228003119483,"sku":"160132B","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"YZ 125 22-Current | Size C - 53.96mm","offer_id":56228003152251,"sku":"160132C","price":109.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-125-1.jpg?v=1777471851"},{"product_id":"vertex-2-stroke-piston-kit-yamaha-250cc","title":"Vertex 2 Stroke Piston Kit - Yamaha 250cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for Yamaha 250cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"YZ 250 90-95 | Size A - 67.94mm","offer_id":40835977019503,"sku":"22154A","price":139.99,"currency_code":"GBP","in_stock":false},{"title":"YZ 250 90-95 | Size B - 67.95mm","offer_id":40835977052271,"sku":"22154B","price":139.99,"currency_code":"GBP","in_stock":false},{"title":"YZ 250 90-95 | Size C - 67.96mm","offer_id":40835977085039,"sku":"22154C","price":139.99,"currency_code":"GBP","in_stock":true},{"title":"YZ 250 96-98 | Size A - 67.94mm","offer_id":40835977117807,"sku":"160376A","price":139.99,"currency_code":"GBP","in_stock":true},{"title":"YZ 250 96-98 | Size B - 67.95mm","offer_id":40835977150575,"sku":"160376B","price":139.99,"currency_code":"GBP","in_stock":true},{"title":"YZ 250 96-98 | Size C - 67.96mm","offer_id":40835977183343,"sku":"160376C","price":139.99,"currency_code":"GBP","in_stock":false},{"title":"YZ 250 99-Current | Size A - 66.34mm","offer_id":40835977216111,"sku":"160003A","price":139.99,"currency_code":"GBP","in_stock":true},{"title":"YZ 250 99-Current | Size B - 66.35mm","offer_id":40835977248879,"sku":"160003B","price":139.99,"currency_code":"GBP","in_stock":true},{"title":"YZ 250 99-Current | Size C - 66.36mm","offer_id":40835977281647,"sku":"160003C","price":139.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-250-1.jpg?v=1777469090"},{"product_id":"vertex-2-stroke-piston-kit-yamaha-125cc-1","title":"Vertex 2 Stroke Piston Kit - Fantic 125cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for Fantic 125cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"XX 125 21 | Size A - 53.93mm","offer_id":40836017487983,"sku":"23119A","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"XX 125 21 | Size B - 53.94mm","offer_id":40836017520751,"sku":"23119B","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"XX 125 21 | Size C - 53.95mm","offer_id":40836017553519,"sku":"23119C","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"XX 125 22-Current | Size A - 53.94mm","offer_id":56228024451451,"sku":"24570A","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"XX 125 22-Current | Size B - 53.95mm","offer_id":56228024484219,"sku":"24570B","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"XX 125 22-Current | Size C - 53.96mm","offer_id":56228024516987,"sku":"24570C","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"XE 125 21-22 | Size A - 53.93mm","offer_id":56228024353147,"sku":"23119A","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"XE 125 21-22 | Size B - 53.94mm","offer_id":56228024385915,"sku":"23119B","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"XE 125 21-22 | Size C - 53.95mm","offer_id":56228024418683,"sku":"23119C","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"XE 125 23-Current | Size A - 53.94mm","offer_id":56228027597179,"sku":"24570A","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"XE 125 23-Current | Size B - 53.95mm","offer_id":56228027662715,"sku":"24570B","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"XE 125 23-Current | Size C - 53.96mm","offer_id":56228027695483,"sku":"24570C","price":109.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-125-1.jpg?v=1777471851"},{"product_id":"vertex-2-stroke-piston-kit-fantic-250cc","title":"Vertex 2 Stroke Piston Kit - Fantic 250cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for Fantic 250cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"XX 250 22-Current | Size A - 66.34mm","offer_id":40836018307183,"sku":"160003A","price":119.99,"currency_code":"GBP","in_stock":true},{"title":"XX 250 22-Current | Size B - 66.35mm","offer_id":40836018339951,"sku":"160003B","price":119.99,"currency_code":"GBP","in_stock":true},{"title":"XX 250 22-Current | Size C - 66.36mm","offer_id":40836018372719,"sku":"160003C","price":119.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-250-1_0d89aa74-045b-4be6-a2cb-a77ecf460adf.jpg?v=1777470065"},{"product_id":"vertex-2-stroke-piston-kit-suzuki-125cc","title":"Vertex 2 Stroke Piston Kit - Suzuki 125cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for Suzuki 125cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use, from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"RM 125 90-99 | Size A - 53.95mm","offer_id":40836620189807,"sku":"160370A","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"RM 125 90-99 | Size B - 53.96mm","offer_id":40836620222575,"sku":"160370B","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"RM 125 90-99 | Size C - 53.97mm","offer_id":40836620255343,"sku":"160370C","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"RM 125 00-03 | Size A - 53.95mm","offer_id":40836620288111,"sku":"22652A","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"RM 125 00-03 | Size B - 53.96mm","offer_id":40836620353647,"sku":"22652B","price":109.99,"currency_code":"GBP","in_stock":false},{"title":"RM 125 00-03 | Size C - 53.97mm","offer_id":40836620386415,"sku":"22652C","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"RM 125 04-10 | Size A - 53.95mm","offer_id":40836620419183,"sku":"160008A","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"RM 125 04-10 | Size B - 53.96mm","offer_id":40836620451951,"sku":"160008B","price":109.99,"currency_code":"GBP","in_stock":true},{"title":"RM 125 04-10 | Size C - 53.97mm","offer_id":40836620484719,"sku":"160008C","price":109.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-125-1.jpg?v=1777471851"},{"product_id":"vertex-2-stroke-piston-kit-suzuki-250cc","title":"Vertex 2 Stroke Piston Kit - Suzuki 250cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for Suzuki 250cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use, from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\" dir=\"ltr\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"RM 250 89-95 | Size A - 66.94mm","offer_id":40836622516335,"sku":"160369A","price":129.99,"currency_code":"GBP","in_stock":true},{"title":"RM 250 89-95 | Size B - 66.95mm","offer_id":40836622549103,"sku":"160369B","price":129.99,"currency_code":"GBP","in_stock":true},{"title":"RM 250 89-95 | Size C - 66.96mm","offer_id":40836622581871,"sku":"160369C","price":129.99,"currency_code":"GBP","in_stock":true},{"title":"RM 250 96-97 | Size A - 66.94mm","offer_id":40836622614639,"sku":"22386A","price":129.99,"currency_code":"GBP","in_stock":false},{"title":"RM 250 96-97 | Size B - 66.95mm","offer_id":40836622647407,"sku":"22386B","price":129.99,"currency_code":"GBP","in_stock":false},{"title":"RM 250 96-97 | Size C - 66.96mm","offer_id":40836622680175,"sku":"22386C","price":129.99,"currency_code":"GBP","in_stock":false},{"title":"RM 250 98 | Size A - 66.34mm","offer_id":40836622712943,"sku":"22540A","price":129.99,"currency_code":"GBP","in_stock":false},{"title":"RM 250 98 | Size B - 66.35mm","offer_id":40836622745711,"sku":"22540B","price":129.99,"currency_code":"GBP","in_stock":false},{"title":"RM 250 98 | Size C - 66.36mm","offer_id":40836622778479,"sku":"22540C","price":129.99,"currency_code":"GBP","in_stock":false},{"title":"RM 250 99 | Size A - 66.34mm","offer_id":40836622811247,"sku":"22585A","price":129.99,"currency_code":"GBP","in_stock":false},{"title":"RM 250 99 | Size B - 66.35mm","offer_id":40836622844015,"sku":"22585B","price":129.99,"currency_code":"GBP","in_stock":false},{"title":"RM 250 99 | Size C - 66.36mm","offer_id":40836622876783,"sku":"22585C","price":129.99,"currency_code":"GBP","in_stock":false},{"title":"RM 250 00-02 | Size A - 66.34mm","offer_id":40836622909551,"sku":"22646A","price":129.99,"currency_code":"GBP","in_stock":false},{"title":"RM 250 00-02 | Size B - 66.35mm","offer_id":40836622942319,"sku":"22646B","price":129.99,"currency_code":"GBP","in_stock":false},{"title":"RM 250 00-02 | Size C - 66.36mm","offer_id":40836622975087,"sku":"22646C","price":129.99,"currency_code":"GBP","in_stock":false},{"title":"RM 250 03-10 | Size A - 66.34mm","offer_id":40836623007855,"sku":"160006A","price":129.99,"currency_code":"GBP","in_stock":true},{"title":"RM 250 03-10 | Size B - 66.35mm","offer_id":40836623040623,"sku":"160006B","price":129.99,"currency_code":"GBP","in_stock":true},{"title":"RM 250 03-10 | Size C - 66.36mm","offer_id":40836623073391,"sku":"160006C","price":129.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-250-1_0d89aa74-045b-4be6-a2cb-a77ecf460adf.jpg?v=1777470065"},{"product_id":"vertex-2-stroke-piston-kit-suzuki-85cc","title":"Vertex 2 Stroke Piston Kit - Suzuki 85cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for Suzuki 85cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use, from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"RM 85 02-19 | Size A - 47.94mm","offer_id":40836632477807,"sku":"160028A","price":79.99,"currency_code":"GBP","in_stock":true},{"title":"RM 85 02-19 | Size B - 47.95mm","offer_id":40836632510575,"sku":"160028B","price":79.99,"currency_code":"GBP","in_stock":true},{"title":"RM 85 02-19 | Size C - 47.96mm","offer_id":40836632543343,"sku":"160028C","price":79.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-85-1.jpg?v=1777474926"},{"product_id":"vertex-2-stroke-piston-kit-honda-500cc","title":"Vertex 2 Stroke Piston Kit - Honda 500cc","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex 2 Stroke Piston Kit for Honda 500cc - Vertex Piston Kits\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat size piston do I need?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIf you are just replacing the piston, then you need to first know the bore of the cylinder. This can be done by using a bore gauge to find the diameter or by reading the owner’s manual to find the bore specifications. Ultimately, the bore should be measured for the best possible results. After the diameter is known, then you can pick which size piston will work best in your cylinder. Remember to maintain about a 0.05mm (0.002”) piston to cylinder clearance, depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eVertex offers A, B, C, D, sizes so that the customer can properly fit each piston to the cylinder. The difference in the sizes is 0.01mm (0.0004\") increments, with A being the smallest and D the biggest. When a cylinder wears, the customer can choose the next larger piston size to regain the proper factory fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy are Vertex Cast pistons better than forged? \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-stroke engines have lower cylinder pressures when compared to four-stroke engines, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminium alloy with 18% silicon content.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhy is Silicon important?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eIt decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eSilicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt. Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVertex Piston Kit\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003ePrecision Fit: Available in exact A, B, or C sizes to match your cylinder bore perfectly, maximising power and performance while minimising blow-by and oil consumption\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eAdvanced Skirt Coating: High-tech Molybdenum Disulphide (MOS2) coating reduces wear and improves break-in performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eComprehensive Kit: Each kit includes a piston, rings, wrist pin, and circlips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003eStandard OEM replacement kits are plug-and-play, including piston, rings, wrist pin, and circlips. They are designed for direct compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" style=\"color: rgb(64, 64, 64);\"\u003eReplacement rings are sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePlease note: that the image in this listing is just an example image.  The piston you receive will be the exact shape and size for the OEM replacement required for your bike.\u003c\/span\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"CR 500 85-01 | Size A - 88.95mm","offer_id":56228351639931,"sku":"09101036","price":144.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1177\/5142\/files\/Vertex-2-Stroke-PistonKit-500-1_c48df1ad-eec1-46d2-ba7d-2e81eb800c8c.jpg?v=1777549377"}],"url":"https:\/\/atmotocross.com\/en-us\/collections\/2-stroke-piston-kits.oembed","provider":"AT Motocross","version":"1.0","type":"link"}