Frame
Grommy 12 6061 Alloy Stealth evo, HHG internal cable routing, Resin footrest, Resin motor cover, Resin chain protector, Post mount disc brake mount.
MONDRAKER GROMMY 12
That’s what the GROMMY 12 is for, an ebike for the little shredders in the house to gain confidence and learn to balance on. The GROMMY 12 is ideal for ages 3 to 5, with its 6061 aluminum frame, 7.5kg weight, a saddle height adjustable between 37cm and 47cm, and providing up to an hour’s range with fully controllable power delivery. The first and only ebike with true mountain bike DNA. You’d like to be little again so you could have one, wouldn’t you? Us too! As with the GROMMY 16, the GROMMY 12 offers a version with the livery of the motorcycling World Champions, Marc and Alex Márquez.
Components
Technical specs
Sizes
One size: 190mm
Fork
MDK 12 Kid, Rigid alloy Stealth stanchions.
Headset
FPD CHEX-1089, Internal ZS, 44/50 upper and lower cup
Stem
MDK, 6061 melt forged alloy, 25.4mm barbore, rise: 0º, length: 30mm
Handlebar
MDK 1.0, 6061 alloy, rise: 25mm, width: 500mm, 9º backsweep, 5º upsweep, 25.4mm barbore
Grips
Kids
Seatpost
One piece Push
Saddle
MDK Kids series
Rear brake
Tektro MD-510 Mechanical hydraulic, flat mount caliper, 140mm IS 6 bolts rotor
Brake lever
Tektro JL-350RS kids specific alloy 4 fingers
Rims
MDK-Push 12, alloy 21mm internal width, 28 spokes
Spokes
CN round stainless steel black
Front hub
KT K88F 9x100mm cup&cone ball bearings
Rear hub
KT TV-3R 9x110mm cup&cone ball bearings
Front tire
Vee Tire Crown Gem 12x2.25 27TPI Wired Bead
Rear tire
Vee Tire Crown Gem 12x2.25 27TPI Wired Bead
Rings
10T, steel
Chain
KMC Z33 Half Link, 1 speed.
Casette
DNP freewheel 16T
Weight
7,7 kg
Display
MDK LED Throttle 3speed position, battery range.
Motor
MDK brushless 250w Output
Battery
MDK 4Ah 80Wh
| Frame size | Grommy 12 | |
|---|---|---|
| A | Seattube length | 155 mm |
| B | Toptube length | 400 mm |
| C | Bottom bracket drop | |
| D | Bottom bracket height | 150 mm |
| E | Chainstay length | 285mm |
| F | Seat tube angle | |
| G | Effective seattube angle | |
| H | Headtube angle | |
| I | Fork Offset | |
| J | Wheelbase | 695 mm |
| K | Headtube length | |
| L | Reach | |
| M | Stack | 345 mm |