Revvi 12" Stabiliser Wheels Kit – Balance Support Training Wheels revvi-bundle Inner tube replacement (recommended when

Inner tube replacement (recommended when fitting a new tyre)

The Z3R-140 is the kind of bike that starts to feel genuinely race-focused rather than just being a bigger beginner bike

Why parents choose it: simple automatic controls

Compare it with the smaller model in our A16 Pro vs A20 guide or browse our Shop By Age guide

Genuine Revvi front forks designed as a direct replacement for Revvi 18" and 20" electric bikes

Revvi 12" Stabiliser Wheels Kit – Balance Support Training Wheels revvi-bundle Inner tube replacement (recommended whenHelp your child build confidence with Revvi stabiliser wheels. This genuine Revvi stabiliser kit is designed to support younger or less confident riders as they learn to balance and control their bike safely. In stock now with fast UK delivery Perfect for Beginners Ideal for riders who are still learning, these stabiliser wheels provide extra balance and support at low speeds, helping build confidence before progressing to independent riding. Great