Specifications
Drivetrain
| Derailleurs | The single chainring is easy and efficient to use.1 chainring and 11 speeds: accelerate on the flat and take on climbs with no compromise.1 single shifter on the handlebar: adapt your speed instantly like the pros as the terrain changes!In detail:-SRAM X1000 32-tooth single chainring-MICROSHIFT M665 11-speed rear derailleur-MICROSHIFT M8515 right shifter-MICROSHIFT H113 11-cog 11 to 46 teeth cassette-KMC X11 chain |
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Frameset
| Frame | The ST 900 S MTB has a UNISEX frame.The ST 900's frame has been carefully designed down to the smallest detail, from the top tube's relatively pronounced slope, to the wide range of sizes (M: 1.65m to XL: 2m). The ST 900 S MTB 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 900 S frame is made from 6061 aluminium (only 2.5 kg in size M without suspension). It is 200g lighter than the ST 540 S frame thanks to its double butted front triangle.Its 120mm 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. |
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| Suspensions | The 120 mm Rockshox 30 Silver hydraulic fork is 400g lighter than that of the ST 540 mountain bike. It is conical and offers even more stiffness and precision when steering. Easily adjust the fork's bounce and stiffness. Its quick COMBO LOCK lockout system, which you can control from the handlebar, helps prevent bobbing and loss of speed on faster sections. |
Brakes
| Brakes | No matter what conditions you ride in (dry/wet), the Rockrider by Tektro 180 mm (front) and 160 mm (back) double hydraulic disc brakes will come through for you, even in the mud.Hydraulic braking adds more power and progressive braking and requires less effort applied to the brake levers.The aluminium brake levers are easy to grip, lightweight, and precise. |
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Components
| Handlebar | The adjustable stem brings the ST 900 S controls to your hands. The all-aluminium ROCKRIDER stem is 70 mm (size S), 80 mm (size M/L), or 90 mm (size XL) and can be raised to 5 adjustment intervals: + 0mm, + 7.5mm, + 15mm, + 22.5mm, + 30mm.In detail:- 720mm oversize ROCKRIDER SPORT aluminium handlebar- ROCKRIDER ergonomic grips for good grip and a comfortable feel. |
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| Saddle | Our teams designed and created an exclusive ROCKRIDER ERGOFIT Pro saddle. Designed for all hip widths, its hammock shape is very comfortable for long, athletic rides. The aluminium Rockrider Sport seat post is lightweight and has a wide adjustment range, with a 31.6 mm diameter and 400 mm in length.Quick and easy tool-free adjustment of your saddle height using the adjustment lever on the seat post clamp. |
| Pedals | The ST 900 S comes with Rockrider Flat platform pedals with a wider pedalling surface and more pronounced dots for better grip on the pedals. |