Specifications
Drivetrain
| Derailleurs | 2 9-speed chainwheels for 18 easy-to-use speeds.The thru-axle bottom bracket is very stiff and long-lasting.In detail:-SHIMANO Altus 22 and 36 tooth double chainring-MICROSHIFT FD-M462 front derailleur-SHIMANO Altus rear derailleur-SHIMANO Acera shifters with speed indicators-MICROSHIFT H092 9-cog 11 to 36 tooth cassette-KMC X9 chain |
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Frameset
| Frame | With a heavily sloped top tube and a wide range of sizes (from S: 1.50m to XL:2.00m).The ST 540 mountain bike frame is UNISEX.The ST 540 mountain bike is available with the same frame in a WOMEN'S version: fitted seat, narrower handlebar, shorter stem, fork with a more flexible spring, and brake levers that are closer together.As a WOMAN, if you choose the MEN'S model, we recommend at least purchasing the WOMEN'S SPORT 500 saddle which is fitted to the female form. - For less weight and more efficient pedalling, the Rockrider ST 540 MTB frame is made from 6061 aluminium (only 2.1 kg in size M).Our designers created this bike to be comfortable and easy to manoeuvre. Its slope has been designed to keep your back straighter. The lower bottom bracket helps keep you more stable during turns. |
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| Suspensions | Ride over obstacles with the hydraulic fork. Its 100 mm travel allows you to calmly overcome more obstacles (roots, pebbles, stones, mud).Its built-in lockout system helps to prevent bobbing and loss of speed on faster terrain. - rear: This mountain bike has no rear suspension. It is a "semi-rigid" mountain bike.Compared to a full suspension mountain bike (with rear suspension), the advantages are clear: this mountain bike is lighter; less energy is lost on flatter ground. If however your primary concern is comfort and manoeuvrability, the ST 540 is available in a full suspension version with suspension at the rear. |
Brakes
| Brakes | No matter what conditions you ride in (dry/wet), the Rockrider by Tektro 160mm double hydraulic disc brakes will come through for you, even in the mud.Hydraulic braking adds more power and progressive braking and requires less powerful use of 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 540 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 SPORT "soft touch" ergonomic grips for good grip and a comfortable feel. |
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| Saddle | Our teams designed and created an exclusive ROCKRIDER ERGOFIT Evo saddle.Designed for all hip widths, its hammock shape is very comfortable for long, athletic rides. The Flex 27.2mm diameter aluminium seatpost also contributes to its increased level of comfort.Quick and easy tool-free adjustment of your saddle height using the adjustment lever on the seat post clamp. |
| Pedals | The ST 540 comes with Rockrider Flat platform pedals with a wider pedalling surface and more pronounced dots for better grip on the pedal. |