BTWIN
Rockrider ST 500 Kids' 24-Inch Mountain Bike 9-12 Years - Black
We have designed this mountain bike for 9- to 12-year-olds (135 to 150 cm) wanting to regularly go mountain biking.
To ensure riders can easily overcome rough terrain, we've equipped this 24-inch MTB with a suspension fork. Easily overcome hilly paths with the 18 speeds.
ID 8672489
BENEFITS
Brake control
Two V-Brake pads for effective braking.
Ease of use
With two grip shifters to easily change between the 18 speeds.
Sitting comfort
A saddle with a sporty design, sized especially for children.
Efficiency
Suspension fork. Skinwall tyres for less weight, with side knobs.
Instructions
DownloadTECHNICAL INFORMATIONS
A frame that is suitable for mountain biking
Our engineers have designed a new sturdy steel frame. The frame's rear chainstays are short, making the bike responsive and easy to handle.
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 between the 18 speeds
This bike is equipped with 2 grip shifters to make it easy to change between the 18 speeds.
Left (chainrings): control ascents/descents.
Right (speeds): more precise control over your pedalling.
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.
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 impacts.
Riding position
To provide you with maximum comfort, this mountain bike is equipped with a high-rise stem. Your position on the bike is slightly raised so you can better anticipate your trajectory.
Crankset
The new chainset has a 152 mm crank that is designed for a child's leg length. This chainset allows you to start pedalling more easily. The crank is covered with a guard to stop you coming into contact with the metal part.
24" wheels and SkinWall MTB tyres
To transport the bike, we’ve made it easy to remove and attach the front wheel. It is equipped with a quick-release system.
The tyres use SkinWall technology. This process reduces their weight and makes them more flexible, which increases performance, grip and comfort.
The recommended tyre pressure is displayed on the tyre sidewall (between 2 and 3.5 bar).
24-inch 1.7 to 2.2 cross-section inner tube with Schrader valve.
Bike accessories
This MTB is equipped with a bell, lighting, wheel reflectors and platform pedals.
The frame is also compatible with other B'Twin accessories:
- front and rear mudguards
- stand
- bottle cage
- saddle bag
- stabilisers: https://www.decathlon.co.uk/20-and-24-stabilisers-id_8550741.html
Dimensions of the bike ready to use
Length: 160cm.
Height: 100cm.
Width: 56cm.
What if I order online?
For smoother shipping, our bikes come with their pedals removed and the handlebar unscrewed (instructions and tools are supplied)
Frame dimensions
Top tube length: 478.6 mm
Seat tube length: 345 mm
Chainstay length: 415 mm
Seat post length: 300 mm
Head angle: 68.2°
PHOTOS NON BINDING
For the drive train parts (freewheel and derailleur), the photos or videos provided on the product description show a Shimano derailleur and a Spark freewheel. However, because of procurement issues, an equivalent, derailleur and cassette from a different brand may be present on the bike.
composition
composition
Bike frame: 100.0% Steel
Tips for storage and maintenance
Storage tips
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.
Restrictions on use
Wear a cycling helmet.Maximum weight in use 80kg
TESTS AND WARRANTY
Parts guarantee
for life (frame, stem, handlebars, rigid fork). Find out more about the bike guarantee.