Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame aluminium -
Wheels 12" -
Suspension Rigid -
Motor 250W hub-drive -
Battery MDK 4Ah 80Wh -
Brakes Mechanical Disc
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
Grommy 12 6061 Alloy Stealth Evo, HHG internal cable routing, Resin footrest, Resin motor cover, Resin chain protector, Post mount disc brake mount.
Suspension Fork
MDK 12 Kid, Rigid alloy Stealth stanchions.
Drivetrain
Chain
KMC Z33 Half Link, 1 speed.
Wheels
Front Hub
KT K88F 9x100mm cup&cone ball bearings
Rear Hub
KT TV-3R 9x110mm cup&cone ball bearings
Rims
MDK-Push 12, alloy 21mm internal width, 28 spokes
Spokes
CN round stainless steel black
Tires
Vee Tire Crown Gem 12x2.25 27TPI Wired Bead
Brakes
Brakes
Tektro MD-510 Mechanical hydraulic, flat mount caliper, 140mm IS 6 bolts rotor
Brake Levers
Tektro JL-350RS kids specific alloy 4 fingers
Cockpit
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
Headset
FPD CHEX-1089, Internal ZS, 44/50 upper and lower cup
Seat
Saddle
MDK Kids series
Seatpost
One piece Push
Motor & Battery
Motor
MDK brushless 250w Output
Battery
MDK 4Ah 80Wh
Remote
MDK LED Throttle 3speed position, battery range.
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | Frame size | 12" |
|---|---|---|
| Wheels | 12" | 12" |
About this model
GROMMY 12 belongs to the Mondraker E Grommy model. Mondraker released 6 e-bikes variations of this model so far. You can get a glimpse at all models from 2022, by clicking on this link.
Safety
Your safety should be the top priority when you go for a ride. In short, make sure that you always use a helmet, high visibility clothing, and proper lights when riding at night-time.
Average price for Youth e-bikes
According to our calculations, the average cost of a Youth e-bike that is reliable is 1895$. However, even though the average price of a Youth e-bike is lower, you might still be able to get a top-quality e-bike. In conclusion, always check e-bike reviews and their components before making a purchase to make sure you don’t overpay.
Youth e-bikes average weight
Youth e-bikes have an average weight of 17.49 kg (38.56 lbs). You will have a greater advantage on climbs if your bike is easier than the average. On descents, however, a heavier bike will give you extra speed.
much lighter than average, GROMMY 12 has a weight of 7.5 kg (16.53 lbs). In conclusion, the average Youth e-bike weighs 133.2% more than GROMMY 12.
Internal Cable Routing
Another thing to mention, is the internal cable routing of this bike. In conclusion, this helps you too, keep the bike cables in mint condition, and also it looks better. No more cables, surrounding the bike.
GROMMY 12 components
Fork material
The fork on this e-bike is made out of aluminum, so there won’t be much extra weight added to the e-bike. However, they are not so stiff as carbon forks are.
Wheels size
The wheels on GROMMY 12 are the 12″ aluminum type. The 12″ wheels are a good fit for folding bikes, BMX, or children bikes. In conclusion, they are great for flat ground or very easy trails.
Brakes
We ride faster and faster, so a good braking system is essential on a bike nowadays. The GROMMY 12 comes with Mechanical Disc brakes. They deliver good performance and cost less than hydraulic disk brakes. However, they don’t have the stopping power of hydraulic brakes.