Rockrider 520 Mountain Bike

Designed for MTB touring.

More details
SKU: S120236 (1864810)
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Size Guide

Delivery in 3 to 4 days

€ 319.80
Characteristics Designed for MTB touring.
Product Benefits
  1. Cycling comfort
    Raised position. Ergonomic saddle. Height-adjustable stem.Soft-touch grips.
  2. Efficiency
    CGF Evo aluminium frame. 24-speed SRAM X3. Light 27.5" Aero Trail Evo wheels.
  3. Precision
    Double disc brakes. Easy-to-handle geometry. Tyres have good grip in turns.
  4. Ease of use
    Ease of use
    Fork and tyres can be easily adjusted to the rider's weight.
  5. Lifetime warranty
    Lifetime warranty
    B’Twin provides a lifetime warranty on the frame, stem and handlebar.
  • Size
    M / L
    27.5 inches
  • Weight
    15.2 kg in M without pedals
  • Life warranty
    frame, handlebar, stem.
    80 mm suspension fork
    Grey / Yellow / Blue
Product feature
  1. Frame
    Rockrider CGF Evo (Comfort Geometry Frame) 6061 aluminium frame for 27.5" wheels. Comfortable seating position thanks to raised steering. Seat is 5 times more flexible than a standard frame thanks to a narrow 27.2 mm seat post. Low bottom bracket: helps keep the mountain bike stable in turns, and makes it easier to place foot on the ground. Open steering angle (69.5°): keeps mountain bike stable while riding. Short rear wheel base: bike is easy to turn.
  2. Fork
    Suntour XCT 80 fork with 80 mm travel and adjustable fork stiffness (+ / -).
  3. Suspension
    No rear suspension.
  4. Drivetrain
    SRAM S200 triple-chainring chainset (22/32/42 teeth). SRAM X3 8-speed rear derailleur. Microshift MS22 front derailleur. SRAM X4 shifters with speed indicators. SRAM PG820 cassette, 8 cogs, 11 to 32 teeth.
  5. Brakes
    Tektro aluminium brake levers: lightweight and precise. Front and rear Hayes MX5 mechanical disc brake callipers: powerful, progressive braking, even in rainy and muddy conditions.
  6. Handlebar
    B'Twin Sport handlebar made from aluminium for reduced weight. Available in 660 mm (size M) and 680 mm (size L): wider for extra stability. Oversize diameter for more stiffness.
  7. Stem
    Exclusive B'Twin Upside Down 0/30 aluminium stem (lower weight). Lengths: 70 mm (S), 80 mm (M and L), 90 mm (XL): shorter for more precise steering. Can be raised by up to 3 cm with 5 settings (+ 0 mm, + 7.5 mm, + 15 mm, + 22.5 mm and + 30 mm). Is 15% stiffer thanks to its width being increased by 48%, providing more precise steering.
  8. Steering
    Semi-integrated Aheadset offers improved watertightness, more precise steering, and an integrated look. B'Twin Sport 120 mm grips with grooves: genuine comfort while riding.
  9. Saddle
    Exclusive B'Twin Ergofit Evo saddle offers outstanding comfort thanks to its wider "hammock" shape and good distribution of pressure points regardless of the rider's pelvis width.
  10. Seat post
    B'Twin Sport seat post made from aluminium to reduce weight. 27.2 mm diameter provides the seat with a natural flex that's 5 times greater than a classic seat post. 400 mm long, offering a wide adjustment range.
  11. Wheels
    Aero Trail Evo wheels with double-walled rims: lightweight, stiff, and durable. 27.5" diameter: the best balance of comfort and performance. Designed with 28 spokes to reduce weight while still guaranteeing rigidity and strength.
  12. Tyres
    Exclusive B'Twin All Terrain Dry 27.5" x 2.0 tyres with a central tread optimised for good performance. Side lugs ensure good traction in turns. Comes with a table of recommended pressure settings depending on the user's weight.
  13. Pedals
    B'Twin Flat resin pedals.
  14. Accessories
    Mountain bike sold with a water bottle, bottle cage, hand pump, saddle bag, an extra inner tube and 3 tyre levers. This mountain bike can also be fitted with a pannier rack, mudguard, stand, etc.
  15. Weight
    15.2 kg in size M without pedals, including accessories.
  16. Electric assistance
    No electric assistance.
Product testing
  1. Composition
    Frame : 100.0% Aluminium 6061
  2. Storage advice
    Store in a cool, dry place, away from corrosive products and salty air.
  3. Product catchline
    The Rockrider 520 equipped with 6 accessories essential to mountain biking; what you need to stay hydrated and perform minor repairs.
  4. Lab tested
    We recommend that beginners wear cycling shorts with a protective pad and/or a gel saddle cover to reduce soreness.
Product reviews
4.8 / 5
5 reviews
5 users recommend this product
Write a review
  • Great bike for the money

    KAREN (United Kingdom)
    Used for 1 week or less
    I got this as a Christmas present, its a great bike looks and feels chunky exactly what I as looking for, great getting the extras too
    All of it!
  • Rockrider 520 Mountain Bike

    Leanne (United Kingdom)
    Used for 2 to 8 weeks
    I could not be happier that I bought this bike. Well worth every penny.
    Smooth ride, brakes work well, stable,
  • Great bike for the basics

    Chris (United Kingdom)
    Used for 2 to 8 weeks
    I have this bike to do a little off road cycling woods and outdoors, it is great, comfy. Came with the extras which I'm sure will come in handy.
    Good equipment for the price.
    Nothing as wasn't expecting much.
  • Outstanding bike

    Fiona (United Kingdom)
    Used for 2 to 8 weeks
    My previous bike was a twist grip shifter and my thumbs always hurt after using it and the pain prolonged until i can stand no more. So I was looking for a bike with rapid fire shifters and I came upon this state of the art bike! The bike itself is nicely designed and it came with free accessories like a bottle holder, bottle, pouch with inner tube and tools and a bike pump. The rapid fire shifters for gear changing is much better, speed is more faster, there is more control that gives out a smoother ride and the new type of brake discs gives you a more prompt halt when applied. Overall its an outstanding bike for a great price and I would recommend it without a doubt!
  • 50

    zino (United Kingdom)
    Used for 2 to 8 weeks