Compare bikes: Compare Btwin Rockrider ST 920 (2020) vs. Rockrider 27.5" ST 530 (2020) - Findabike

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.

Our engineers have designed a new aluminium frame. Durable, lightweight and responsive: designed for tackling any obstacles when out mountain biking. - Top tube length: 479.3 mmSeat tube length: 345 mmChainstay length: 415 mmSeat post length: 370 mmHead angle: 68.2°

The ST 530 S MTB has a UNISEX frame.The frame of the ST 530 S has been carefully designed down to the smallest detail, from the top tube's relatively pronounced slope, to the wide range of sizes (M: 1.65 m to XL: 2 m). The ST 530 S is not only lightweight and comfortable, but UNISEX as well.To make the most of the improved comfort, the women on the Rockrider team recommend the 500 Women's Sports saddle, which is specially designed for the female form. - For less weight and more efficient pedalling, the Rockrider ST 530 S frame is made from 6061 aluminium (only 2.7 kg in size M without suspension). Its 120 mm rear shock uses a single-pivot system (more sensitive to small impacts, while remaining firm when encountering large impacts) and sealed bearings for a great lifespan.

This 24" ST 920 bike comes with an air fork that adapts to the child's weight.Take on new challenging terrain (roots, stones, gravel, etc.) with ease thanks to the travel of the front suspension fork.

The hydraulic fork, with 120 mm travel, allows you to easily ride over more obstacles (roots, pebbles, stones, mud).The fork's built-in lockout system helps to prevent bobbing and loss of speed on faster terrain.

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.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).

No matter what conditions you ride in (dry/wet), the Rockrider by Tektro 160 mm double hydraulic disc brakes will come through for you, even in the mud.Hydraulic brakes deliver more powerful and progressive braking and require less effort applied to the brake levers.The aluminium brake levers are light, easy to grip, and precise.

The adjustable stem on the ST 530 S allows you to position the levers so they're easy to grip. The all-aluminium ROCKRIDER stem is 70 mm (size S), 80 mm (size M/L), or 90 mm (size XL) and can be raised in 5 adjustment intervals: + 0 mm, + 7.5 mm, + 15 mm, + 22.5 mm, + 30 mm.In detail:- 720 mm oversize ROCKRIDER SPORT aluminium handlebar- ROCKRIDER SPORT "soft touch" ergonomic grips for good grip and a comfortable feel

The ST 530 S saddle is welded to prevent any saddle movement as you cycle.Because your comfort is our next priority after safety, we've added an exclusive Rockrider Ergofit Evo saddle that is wider and hammock shaped.Easily adjust the height of your saddle with the 400 mm long, 31.4 mm diameter seat post.

The ST 530 S comes with Rockrider Flat platform pedals with a wider surface and more pronounced dots to better keep your foot on pedal.