The Mondraker Grommy is an Electric Balance Bike for Kids

The hardest part when learning to ride a bike is balancing it on two wheels, and what makes a bike easier to balance? Speed. It’s true. The gyroscopic nature of a wheel means that when it picks up speed, it’s easier to stay in a straight line.

This must be the train of thought with the new Mondraker Grommy, a two-wheeled balance bike, like a Strider, but with a motor. Either that, or the bike industry is trying to get people on e-bikes as early as possible.

“The new Mondraker Grommy elevates the balance bike category to a whole new level, with its innovative and expertly delivered electric motor power and advanced frame and components, creating the first true e-balance bike.” The Grommy is available as a 12- or 16-inch wheeled bike for youngsters, with a 250W “power unit,” which Mondraker says is easy to control.

The Grommy is made from 6061 alloy in Alicante, Spain. The 12-inch model is intended for kids aged 3-5 and 16-inch is intended for kids aged 5-8. Like other Mondraker bikes, even the Grommy sees some of the brand’s Forward Geometry.

There is internal routing for the rear Tektro disc brake and the motor is connected to a twist grip on the right-hand side. Mondraker says that it is a “throttle-style power mode selector.”

The battery unit is capable of 60-minutes of run time on a full charge. The charge also takes about an hour, but Mondraker says batteries can be easily swapped.

“Mastering the three-speed controls is child’s play. The learning starts on the first setting, ‘Balance’ (max speed 8.1km/h, 5MPH) and the grins get broader on 2 and 3: ‘Fun’ (12.1km/h) and ‘Advanced’ (max 17.7km/h, 10.5MPH). Or turn off Grommy’s motor and kids can use it like a traditional balance bike.”

The motor and battery are IPX4-rated and water-resistant and the Grommy has standard componentry like saddles, seatpost, handlebars, stem, and disc brakes.

The Grommy will sell for 749€ and comes with a 2-year warranty. It does not look like it will be available for sale in the US. See the Mondraker website for more info.

Quick specifications
Grommy-12” – 190mm frame, 12-inch wheels, weighs just 7.5kg, with saddle height range 37-47cm, for riders aged 3-5 years 
Grommy-16” – 250mm frame, 16-inch wheels, weighs just 8.5kg, with saddle height range 43-58cm, for riders aged 5-8 years 

Both models feature:

  • Superlight Mondraker Alloy Frame & Fork
  • Three power modes: ‘Balance’ (max speed 8.1km/h), ‘Fun’ (17.7km/h) and ‘Advanced’ (17.7km/h)
  • Quick-change 4Ah battery: 60 minutes run time, 60 minutes full charge time
  • Integrated base footrest
  • ‘Big bike feel’ MTB standard componentry and compatibility
  • Internal cable routing
  • Mechanical disc brake

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