Rockrider ST 900 Kids' 24-Inch 9-12 Years Mountain Bike - Red

€ 300.00
SKU: S300746 / 2391250 / 8405170
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    Size : 24"
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Product benefits
  1. Ease of use
    ALU frame and chainset for less weight. Quick release for removing the wheels.
  2. Brake control
    Front/rear mechanical disc brakes: powerful braking in all conditions
  3. Efficiency
    Suspension fork. Skinwall tyres for less weight, with side knobs.
  4. Cycling comfort
    Sports saddle combined with an aluminium seat post for greater comfort
Product feature
  1. A frame that is suitable for mountain biking
    Our engineers have designed a new aluminium frame. Durable, lightweight and responsive: designed for tackling any obstacles when out mountain biking.
  2. Controlled braking
    Brake effectively thanks to the mechanical disc brakes at the front and rear. The disc brake acts on the wheel axle to deliver powerful braking under any conditions (dry, wet, muddy, etc.).
    This bike is equipped with speed controls that are controlled using the thumb and index finger, allowing effortless changes between the 8 speeds. The single 36-tooth chainring and 11-34 cassette make it easy to shift gears and deal with any kind of hill. With just one control to manage, you can focus on your trajectory.
  4. 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. Suntour fork with 50 mm of travel.
  5. Comfort when riding
    A saddle with a sporty design, designed with care to adapt to the morphology of children. Combined with an aluminium seat post (sturdy and flexible) for even greater comfort.
  6. Riding position
    To hone your steering, we have equipped this mountain bike with a short aluminium stem (70mm) and a 540 mm oversize handlebar. This makes you more precise and responsive on turns.
  7. Aluminium chainset
    The new aluminium chainset has a 152 mm crank that is suited to the child's leg length. This light chainset allows you to start pedalling more easily. The double guard over the chain stops it jumping.
  8. Double-walled rims and SkinWall tyres
    The double-walled aluminium rims are light and durable. For transporting the bike, we've made it easy to attach/detach the front and rear wheels. They are equipped with a quick-release system. The tyres use SkinWall technology. This process allows you to reduce their weight, therefore increasing performance, grip and comfort. 24-inch 1.7 to 2.2 cross-section inner tube with Schrader valve. Pressure indicated on the tyre sidewall (between 2 and 3.5 bar).
  9. 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 - bag
  10. Dimensions of the bike ready to use
    Length: 160cm. Height: 100cm. Width: 60cm.
  11. Frame dimensions
    Top tube length: 479.3 mm Seat tube length: 345 mm Chainstay length: 415 mm Seat post length: 370 mm Head angle: 68.2°
Product testing
  1. Composition
    Frame : 100.0% Aluminium
  2. Storage advice
    Store the bike in a clear, dry place. Clean and grease the chain regularly. Our tips for before each ride: inflate the tyres to the pressure indicated on the sidewall.
  3. Product restrictions
    Wear a cycling helmet while riding. Max user weight: 80 kg.
  4. Product information
    We've equipped this 24-inch mountain bike with an aluminium frame to make it lighter so children can take on any obstacle. The suspension fork and disc brakes mean they'll be able to go anywhere.