GROMMY 12

Grommy is a cool new balance bike for kids with a punchy little electric motor, and a 'Big Bike' feel.

It’s the first e-balance bike for kids with full MTB DNA – for kids who want to have fun, getting into two-wheeled action on a new toy with a superbly balanced feel. Made from our usual advanced materials, technology and know-how, the smaller option, Grommy-12, is perfect for kids aged 3-5 years with a saddle height range of 37-47cm. With a strong, light and durable 6061 Alloy frame.The slim 250W motor and 60-minute runtime battery are mounted low down to help with Grommy’s sweet handling. It’s the bike you wished you had when you were a kid.

Components

Technical specs

Frame

Grommy 12 6061 Alloy Stealth evo, HHG internal cable routing, Resin footrest, Resin motor cover, Resin chain protector, Post mount disc brake mount.

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

7.5 kg

Display

MDK LED Throttle 3speed postition, battery range.
Motor

MDK brushless 250w Outoput

	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

DEMO TOUR

GROMMY 12

KIDS / e-KIDS

Grommy is a cool new balance bike for kids with a punchy little electric motor, and a 'Big Bike' feel.

Technical specs

Geometry

Download

Find your store

GROMMY 12

KIDS / e-KIDS

Grommy is a cool new balance bike for kids with a punchy little electric motor, and a 'Big Bike' feel.

Technical specs

Size guide

Geometry

Download

Find your store

Compare bike

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Size guide