Free Delivery over £30* | Free Click & Collect at Decathlon Stores | 365 Days to Return

Suspension fork. 6 speeds and lugged tyres.

Reference : 8554961

Racingboy 500 Kids Mountain Bike - 20"

We've designed this mountain bike for children aged 6 to 8 years (120 to 135cm) wanting to start mountain biking. To ensure riders can easily overcome rough terrain, we've equipped this 20-inch MTB with a suspension fork. Easily overcome hilly paths with the 6 speeds.

Unfortunately, this product is no longer available


Why have we created a brake lever specifically for children?

Because children have smaller hands than adults, it's not always easy for them to reach the brake lever. That's why our engineers and designers have designed them to be closer to the handlebars for easier grip. The brakes are now in reach of little hands!

Front suspension to cushion unpredictable terrain

Take on new challenging terrain (roots, stones, gravel, etc.) with ease thanks to the travel of the front suspension fork.

Changing gears (6 speeds)

This bike is equipped with a grip shifter to change between the 6 speeds: It's a safer and easier system for children so they don't need to let go of the handlebar.
It becomes self-evident how to change gears to adapt to the terrain!

Controlled braking

Two V-Brake pads for effective braking.
These brakes are composed of callipers that exert more or less pressure on the rim to slow or stop the rotation of the wheels.

Frame designed for mountain biking

This robust steel frame is designed to overcome obstacles on all your MTB outings.

A reinforced, ergonomic saddle

A saddle with a sporty design, designed with care to adapt to the morphology of children. It is equipped with a plastic cover at the back (a bumper) to protect from any potential impacts.

20" wheels and MTB tyres

The tyres are designed for mountain biking. The side lugs provide good grip for cornering.
The recommended tyre pressure is displayed on the tyre sidewall.
20-inch 1.7 to 2.2 cross-section inner tube with Schrader valve.

MTB fittings

This MTB is equipped with a bell, a stand, lighting, wheel reflectors and a derailleur guard.
The frame is also compatible with other B'Twin accessories:
- front and rear mudguards
- rear pannier rack

Dimensions of the bike ready to use

Length: 140cm.Height: 80cm.Width: 54cm.

See more See less


Frame (for bike)
100.00% Steel
Stock advice Store the bike in a clean, dry place. Clean and grease the chain regularly. Our tips for before each ride: inflate the tyres to the pressure indicated on the sidewall.
Restricted use : Wear a cycling helmet.


Guarantee : for life (frame, stem, handlebars, rigid fork). Find out more about the bike guarantee.