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Mondraker Grommy 12 Electric Scooter 80 Wh 12'' Purple / Blue 2023 3 - 5 years



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What size kid's bike do i need?

This handy chart should show you the right bike for your child, based on age, height and wheel size (inches). Bikes with 12" wheels are generally balance bikes: with no pedals or cranks, they are designed to teach balance and control and are the perfect introduction for young children up to 90cm.

Kid's bike sizing guide:

Wheel Size 10'' - 12.5'' 14'' 16'' 18'' 20'' 24''
Rider Height (cm) 85 - 95 95 - 105 100 - 115 110 - 125 120 - 135 130 - 155
Age Range 1.5 - 3 3 - 4 4 - 6 6 - 7 7 - 9 9 and +

All little riders grow at different rates. So the best way of finding the right size bike for them is to look at models in their age range and then match their height to the right bike. As a rule, it’s best to get your child to sit on a potential new bike and to check that they can touch the ground with both feet.

Still confused? Contact us.

Note : Please note that specifications are subject to change without notice, based on component availability and other factors.

Spectacular! Can you imagine if you had a VAE to gain balance when you were 3 years old?
This is how the Grommy 12 was born, a VAE for the little ones to gain confidence and balance with two wheels. The Grommy 12 is ideal for 3-5 year olds, with a 6061 aluminum frame, 7.7 kg weight, 37-47 cm seat height, up to an hour of autonomy, and fully adjustable power.
The first and only VAE with pure ATV DNA.
You'd love to be a kid again to get one of these, right? So would we. Like the Grommy 16, the Grommy 12 also comes in a version with the colors and customizations of the motorcycle world champion brothers Marc and Alex Marquez.

Product advantages :

  • 6061 Alloy Stealth evo aluminum frame.
  • Mondraker brushless motor of 250 W, with 80 Wh battery.
  • Maximum speed of 17.7 km/h.
  • Mechanical disc brake at the rear, 140 mm.


Frame Aluminum: 6061 aluminum Grommy Stealth evo, HHG internal cable routing, resin footpegs, resin motor cover, resin chain guard, Post-Mount disc brakes.
Fork Aluminum: MDK 12 Kid, Stealth rigid aluminum plungers.
Motor MDK brushless, 250 Watt Output, max speed 17.7 km/h
Battery MDK, 4 Ah, 80 Wh
Control MDK LED 3-position joystick, battery life.
Sprocket DNP freewheel, 16 teeth
Chain KMC Z33 Half Link, 1 speed.
Chainring Steel, 10 Teeth
Rear brakes Tektro MD-510 Mechanical hydraulic, Flatmount brake caliper, 140 mm IS 6 hole disc
Wheels MDK-Push 12, aluminum, inner width 21 mm, 28 spokes
Hubs Front: KT K88F 9 x 100 mm, ball bearings with cup and cone / Rear: KT TV-3R 9 x 110 mm, ball bearings with cup and cone
Tires Vee Tire Crown Gem 12x2,25 27 TPI, rigid bead
Handlebars MDK XC 1.0, aluminum 6061, curve: 25 mm, width: 500 mm, bend 9°, rise 5°, bore 25.4 mm
Handles Kids
Stem MDK, cast forged aluminum alloy 6061, bore 25.4 mm, curve: 0°, length: 30 mm
Headset FPD CHEX-1089, Internal ZS, upper and lower cup 44/50
Saddle MDK Kids series
Saddle post One piece Push
Weight 7.7 kg

Geometries :

Child's age (years) 3 - 5
Wheel size (inches) 12
Seat tube (mm) 155
Top tube (mm) 400
Base length (mm) 285
Wheelbase (mm) 695
Stack (mm) 345
Reach (mm) ---
Saddle height (cm) 37 - 47



Gender Boy
Wheel Size 12''
Groupset Single Speed
collection End of series
Age 3 - 5




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