M
Mondraker
In production2020–

Grommy E

city
01

Origin

Mondraker is a Spanish brand founded in 2001 in Alicante, best known for aggressive enduro and downhill mountain bikes and its signature Forward Geometry. In 2020-2021 the company took an unusual detour into the children's market and launched the Grommy, which it billed as the world's first 'e-balance bike'. Rather than a pedal bike with training wheels, the Grommy is a chainless, pedal-less balance bike with a small 250W electric motor and a motorbike-style twist-grip throttle. The idea: let very young kids feel controlled power delivery, learn throttle and balance in graduated modes, and build the fine-motor confidence that later transfers to e-MTBs and motocross. It arrived to a divided reception — magazines called it either brilliant or alarming — but it carved out a genuine niche, and Mondraker has kept it in the range and re-launched it as the 'New Grommy'.

02

Specifications

Frame
6061 aluminium alloy, internal cable routing, integrated resin footrest / motor cover / chain protector
Weight
kg
Drivetrain
None — no pedals/chainring; a chain-driven brushless motor propels the bike (twist-grip ride-by-wire throttle, 3 modes)
Brakes
Tektro MD-510 mechanical disc, rear wheel only (140mm)
Wheels
Two sizes: 12" (ages 3-5) or 16" (ages 5-8)
03

The verdict

+Strengths
  • Genuinely fun, motorbike-like experience — kids find the twist-grip intuitive and grin instantly
  • Graduated speed modes (8.1/12.1/17.7 km/h) let parents match the pace to a young child's ability
  • Grippy Vee Tire Crown Gem tyres and a low central motor give secure, balanced handling for skills/pump-track use
Weaknesses
  • A single rear mechanical disc is under-braked for the bike's top speed, especially on longer descents
  • Throttle engagement is delayed and non-adjustable; build niggles include rattling plastic covers and footrests
  • Heavy for a balance bike (~8.7 kg measured on the 16") and expensive; safety-conscious reviewers flag the throttle for young kids
04

Generations

  1. Grommy (2020-2021 launch)

    • Original e-balance bike, 12" and 16" sizes, twist-grip throttle, 3 speed modes.
    Brakes
    Tektro MD-510 mechanical disc, rear only
  2. New Grommy (relaunch, ~2024-2025)

    • Re-marketed 'New Grommy' — same core concept, 6061 alloy frame, 12"/16", 250W, 3 modes; refreshed spec/colours. Core figures unchanged vs launch.
    Brakes
    Rear disc
05

Versions & builds

Every official build side by side — differences highlighted.

Versions & builds
SpecCurrentGrommy 12CurrentGrommy 16
Year20212021
BrakesTektro MD-510 mechanical disc, rear onlyTektro MD-510 mechanical disc, rear only
MSRP€749€799
PurposeValueBalanced
06

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