Your 1st MTB with an exceptional aluminium frame!
Mountain Bikes Rockrider 5.1 Mountain Bike, Grey B'TWIN
B'TWINSize
Please select a size
Please select a size
Price in store £159.99
From and limited stock
* Sales price at
From and limited stock
* Sales price at
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Ease of use5 sizes available for better riding comfort. 21 speeds.
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DurabilityReinforced aluminium frame; b'Twin-tested components.
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CushioningSuspension fork; wide all-round tyres.
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Accuracy / precisionV-brake system: powerful and effective!
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Anatomic designSizes: XS(145-155cm) S(155-165cm) M(165-175 cm) L(175-185cm) XL(185-200cm)
- Sizes
- XS(145-155cm) S(155-165) M(165-175 ) L(175-185) XL(185-200)
- Colour
- Brown
- Suspensions
- Front fork
- Wheel size
- 26 inches
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Frame Reinforced 6061 T4T6 aluminium frame, exclusive FIVE geometry for versatility. Lightweight. A large selection of available sizes (145 cm to 200 cm) ensure it fits you comfortably. Easy adjustment makes sure you are comfortable and provides better control. Three layers of paint provide the frame with lasting protection. The decorations are varnished.
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Fork / Suspension Suntour XCT suspension fork.
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Drivetrain SRAM MRX 21 speed grip shifters for climbing the harshest of gradients. Shimano TZ30 front derailleur, Shimano rear derailleur, KMC Z51 chain.
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Bottom bracket / Cassette Bottom bracket with 24x34x42 chainrings. 21 speeds. Steel bottom bracket with a plastic protective piece; tough and reliable.
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Brakes Aluminium 2-finger levers, coil spring V-brakes
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Handlebar / Stem / Steering HL 153 580 semi-raised steel handlebar, HL 215 steel stem.
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Wheels aluminium rims with 36 holes to save weight. Aluminium rims with 36 holes to save weight. Quick wheel release system at the front, which is handy when you come to put your bike in the car, or store it at home, or for repairs.
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Tyres 26x2.0 semi-slick tyres are the best combination for use in the city and the country.
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Saddle / Seat post HL SP200 steel seatpost. PU MTB saddle. Comfortable positioning keeps you in control of your bike. Steel components ensure the bike's durability and longevity over time. Wide, comfortable saddle.
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Pedals VP platform pedals, on bearings.
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weight 14.13kg in size S, without pedals
Important: When you purchase a bike online, pedals are not fitted and the stem/bars are not adjusted. Please visit this video to see how to correctly set up your bike.
its benefits
Guarantee : 5 years for frame / 2 years for fork, shocks and parts (excluding normal wear).
its features
Technical Information
Information / Concept / Technology
Restricted use :
Not designed for MTB riding on rough terrain.
Stock advice
Store in a dry place.
Care instructions:
we recommend reading and following the maintenance instructions found in the manual that comes with your Btwin bike.