Rockrider 520 Mountain Bike

    € 310.80

    Designed for mountain bike touring. Have fun exploring new playgrounds.

    More details
    SKU: S120236 (1864810)
    Select a color:
      Select a size :
    Size Guide

    Delivery in 6 to 7 days

    Our e-commerce is suspended for a transition period. We expect to be back soon!
    Product benefits
    1. Cycling comfort
      Enjoy the raised position, adjustable stem, 80mm suspension, and hammock saddle.
    2. Efficiency
      Ride and explore with the 27.5" wheels, 24 speeds, and aluminium frame.
    3. Precision
      Precision
      Control your path with the double disc brakes and notched tyres.
    4. Ease of use
      Ease of use
      Use the wheel to adjust the stiffness of the fork based on your weight.
    5. Lifetime warranty
      Lifetime warranty
      B’Twin provides a lifetime warranty on the frame, stem and handlebar.
    Details
    • SIZE
      S/M/L/XL
    • WEIGHT
      14.45 kg in M without pedals
    • WHEEL SIZE
      27.5 inches
    • LIFE WARRANTY
      frame, handlebar, stem.
    • SUSPENSION
      80 mm suspension fork
    • COLOURS
      Grey / Yellow / Blue
    Product feature
    1. THE STORY OF THE ROCKRIDER 520 MOUNTAIN BIKE...
      Entirely designed and developed in France at the B'Twin Village (Lille), this mountain bike is the fruit of the work of an expert team of passionate mountain bikers. The Rockrider team designed and tested the Rockrider 520 mountain bike with their test riders.
    2. A UNISEX MOUNTAIN BIKE
      Men's or women's mountain bike? The Rockrider 520 mountain bike is unisex. For greater comfort, the women on our mountain bike team recommend replacing the saddle with the Women's 500 Sport saddle, which is adapted to women's bodies.
    3. HOW DO I CHOOSE MY MTB SIZE?
      Several sizes available: S: between 1.50m and 1.64m M: between 1.65m and 1.74m L: between 1.75m and 1.84m XL: between 1.85 m and 2.00 m If you are on the limit between 2 sizes: Choose the smaller size for easier steering (easier to handle) and comfort (straighter back). Choose the larger size for easier pedalling with a more stretched-out position (position more suited to performance).
    4. A FRAME THAT COMBINES THE JOY OF THE RIDE & THE PLEASURE OF STEERING
      For a lighter weight and more efficient pedalling, the Rockrider 520 frame has been designed with 6061 aluminium (only 1.9 kg in size M). The lower bottom bracket helps keep you more stable during turns.
    5. FRONT SUSPENSION TO CUSHION UNPREDICTABLE TERRAIN
      Calmly face new obstacles (roots, pebbles, stones, etc.) with the front fork with 80 mm of travel. Easy: use the wheel to adjust the stiffness of the fork based on your weight.
    6. REAR SUSPENSION: NONE
      This mountain bike has no rear suspension. This is a "semi-rigid" mountain bike. Compared to a full suspension mountain bike (with rear suspension), the advantages are clear: lighter weight, you will spend less energy on flat ground. However, if you want more comfort, the RR 520 also exists in a "full suspension" version with a rear shock absorber.
    7. DERAILLEUR & DRIVE TRAIN: REACH GREAT SPEEDS
      3 8-speed chainwheels, or a wide range of 24 speeds. 2 quick shifters on the handlebar. Left (chainrings): control ascents/descents. Right (speeds): more precise control over your pedalling. In detail: - Triple chainwheels - 22, 32 and 42 teeth - MICROSHIFT MS22 front derailleur - SRAM X3 rear derailleur - SRAM X4 shifters, with speed indicators - SRAM PG820 8 cog cassette, 11 to 32 teeth
    8. HANDLEBAR, STEM, GRIPS: TAKE CONTROL OF THE HANDLEBARS
      With its adjustable stem, the RR 520 controls are close at hand. The all-aluminium B'Twin stem is 70 mm (size S), 80 mm (size M/L), or 90 mm (size XL) and can be raised using 5 adjustment intervals: + 0 mm, + 7.5 mm, + 15 mm, + 22.5 mm, + 30 mm. In detail: - Aluminium "oversize" handlebars are 660 mm (size S and M) or 680 mm (for L and XL) wide - B'TWIN SPORT "soft touch" grips for a good grip and comfortable feel in your hands.
    9. SADDLE / SEAT POST: COMFORTABLE AND SPORTY SEAT
      Since your mountain bike rides will get longer and longer, it is important to have a suitable seat. So our teams have designed the exclusive B'Twin Ergofit Evo saddle. Suitable for all hip sizes, its "hammock" shape is particularly noticeable during sport touring. Along with the 27.2 mm diameter aluminium FLEX seat post, it guarantees greater comfort. Easily adjust the seat height using the quick release on the seat clamp.
    10. DOUBLE DISC BRAKES: GET A GRIP ON YOUR BRAKING
      No matter what conditions you ride in (dry/wet/mud), the HAYES MX5 front and rear mechanical disc brake calipers offer powerful, progressive braking. The TEKTRO aluminium brake levers are easy to grip, lightweight, and precise.
    11. DOUBLE-WALLED 27.5" WHEELS
      Have fun with the 27.5" double-walled aluminium Aero Trail Evo wheels. Their diameter is the perfect balance between comfort and performance. With their 28 spokes, they are lightweight, stiff, and durable.
    12. TYRES FOR DRY TERRAIN
      The exclusive 27.5" x 2.0 B'TWIN ALL TERRAIN DRY tyres are adapted to dry ground. Their side lugs provide good traction during turns. The central tread provides good performance and the side lugs offer traction during turns. Recommendations for pressure based on the cyclist's weight are marked on the sidewalls.
    13. PLATFORM PEDALS
      The RR 520 comes with MTB bearing-mounted platform pedals made of hard resin for light weight and safety. If your foot slips off the pedal, there's less risk of injury.
    14. EASILY TRANSPORT AND STORE YOUR MOUNTAIN BIKE
      Cycle touring does not start from home; that's why we have made it easier to remove and replace the front and rear wheels. They are equipped with a quick-release system.
    15. Weight
      14.35 kg in S without pedals. 14.45 kg in M without pedals. 14.55 kg in L without pedals. 14.70 kg in XL without pedals. The weight can vary based on the tolerance of the components. The bike comes with B'Twin platform pedals. The total weight (bike + rider) should not exceed 120 kg.
    16. Accessories
      Your RR520 mountain bike comes with a bell, lighting, wheel reflectors, and pedals. The frame is compatible with: - front and rear mudguards, - stand, - bottle cage, - saddle bag, - rear pannier rack, - child seat (add an additional pannier rack for sizes S and M to avoid touching the rear wheel) etc.
    17. OUR ADVICE FOR YOUR FIRST RIDE
      Tip No.1 When mountain biking, there is always the risk of a fall: don't forget to wear a helmet. Tip No.2 Even if the saddle is comfortable, cycling shorts with a pad (saddle-shaped foam) are a real plus for preventing glute pain. Tip No.3 If you don't want to stop to drink, bring water in a bottle or water bladder to access it while riding. Tip No.4 Punctures are always possible, remember to bring a repair kit.
    Product testing
    1. Composition
      Frame : 100.0% Aluminium 6061
    2. Approved by
      The Mission Test test users in the Lyon mountains, in May 2015.
    3. Storage advice
      We recommend storing your mountain bike in a cool, dry place, away from corrosive products and salty air.
    4. Product restrictions
      Not suitable for All Mountain, Enduro, and BMX.
    5. Product catchline
      The Rockrider 520 equipped with 6 accessories essential to mountain biking; what you need to stay hydrated and perform minor repairs.
    6. Lab tested
      We also recommend that beginners wear cycling shorts with a protective pad and/or a gel saddle cover to reduce soreness.
    Product reviews
    4.2 / 5
    142 reviews
    142 users recommend this product
    Write a review
    • Rockrider 520 mountainted bike

      25/04/2018
      John (United Kingdom)
      Used for 1 week or less
      How disappointing the first time I took the bike out the chain came off when changing from middle cogs to large at the front now left with 16 gears until I can get it to a bike shop and get the gears set up properly. With a 150 mile round trip it's not feasible for me to take it back to get the gears adjusted. Maybe i would have been better off going to a local well known bike shop where I could have got a similar bike cheaper and been able to take it back if there was a problem.
      Response of the brand
      Dear sir,
      Thank you for taking the time to inform us of the issue your have with the shifting on your bike. Could you kindly reply to me with the name of the store which set the bike up for you?
      Regards,
      Peter Lazarus, National Cycling Manager, DECATHLON
    • Great starter bike

      24/04/2018
      Nicholas (United Kingdom)
      Used for 2 to 8 weeks
      I bought this bike for my daughter to get into mountain biking and I have ridden it a few times myself, obviously there are budget components fitted but the overall look of the bike is excellent. The ride of the bike is very good and the frame is quite lightweight. Superb quality for the price.
    • Rockrider

      19/04/2018
      Dolores (United Kingdom)
      Used for 2 to 8 weeks
      Shop assistant offered excellent support and guidance and made choosing easier. Son delighted with bike and has already had very good use of it!
    • Rockrider

      14/04/2018
      Chris (United Kingdom)
      Used for 2 to 8 weeks
      Fantastic bike. Lots of kit for the price.
    • Great bike

      08/04/2018
      BEN (United Kingdom)
      Used for 2 to 8 weeks
      Great value for the price
      Very happy
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