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The no. 1 sports MTB: alu frame and disc brakes.

All Bikes Cycling - Rockrider 500 Mountain Bike B'TWIN - Bikes
Reference : 8293150
All Bikes

B'TWIN Rockrider 500 Mountain Bike

The b'Twin Rockrider 500 Mountain Bike is perfect if you're looking to get into hitting the trails. With a lifetime warranty aluminium frame, front and rear disk brakes and a SRAM 24 speed drivetrain you can be confident that this bike is built to last.

To view our full range visit our mountain bikes category.


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until £239.00 - %

From £239.00**

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Price in store £0.00 £239.00 **

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Home Delivery
free on orders over £70* - More information

Freedom of Return
find out more about our returns policy.

Safe payment
PayPal, Verified by VISA & MasterCard SecureCode.

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.

Life Time Warranty: B'TWIN makes the life time warranty for the frames, brackets, stems and rigid forks. Guaranteeing your Bike for life!

Product benefits

    • User comfort
    • Raised riding position, for efficient, painless cycling. Lamellar grips.
    • Efficiency
    • Aluminium frame: lighter and higher performance. 160 mm double disc brakes.
    • Easy adjustment
    • INNOVATION: adjust the fork to your weight in less than 1 minute
    • Lifetime warranty
    • B’TWIN guarantees the frame, stem and handlebar for life.
    • Accuracy / precision
    • Disc brakes provide powerful braking in all weather conditions. Trigger shifter.
  1. Guarantee : Lifetime warranty for frame, stem and handlebar on this bike. Details on

Product information

XS:135-150; S:150-165; M:165-175; L:175-180; XL:180-195
Wheel size
26 inches
Suspension fork
14.07 kg (XS) without pedals

your reviews

4.6 / 5

19 reviews

17 people recommend this product

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  (United Kingdom)


5 5

Smooth ride, looks fantastic, high number of gears to reach the max speeds, fairly light, friends love it!

Fantastic service!

Really helpful staff. They made a real effort.


  (United Kingdom)

30-39 years old    Man

5 5

used for 2 to 8 weeks Great service at store. The members of staff made a real effort to ensure my item was exactly what I needed. The item has been perfect upto now. Well done!

High expectation

Price is good

set up was poor


  (United Kingdom)

30-39 years old    

3 5

used for 3 to 6 months I had high expectations having already owned a Triban 5 which is superb. The bike was poorly set up and I had to take it back tot he store. The staff member was very helpful and sorted out the gear mechanism as well as the rear disc brake which was sticking. The next problem I had was the seat. No matter how many times it is adjusted it comes loose within about 6 miles. I have got so fed up with it that I have swappwed my Triban post and seat onto this bike. It is perfect now. Bike is good now but i got so annoyed with the hassel of having to get it to that point, as well as having to swap the good seat over to whichever bike I am using. Could be a lot better.

Great bike , nice to ride , was impressed how lig

Lots of gears , everything is adjustable.

No mud grards


  (United Kingdom)

40-49 years old    Man

4 5

Over all a good bike , for the hills or the road . I'm enjoying riding it ...

Response of the brand

I'm pleased to read that you're enjoying your bike.
I would recommend these mudguards from sks :
Happy riding.
Peter Lazarus UK Market Manager DECATHLON

Ian found this review helpful

Rockrider 500

Great bike for the money


  (United Kingdom)

40-49 years old    Man

5 5

used for 1 week or less Needed a new bike, so instead of the usual Carrera brand from Halfords, I decided to have a change and went for the B-Twin Rockrider 500. Must say that after 4 days of riding it, I am getting the distinct impression that this is one of the best bikes I have riden. The riding position is excellent, the gear change is so smooth and effortless, it is amazing! For the money spent, this ticks all the boxes. I cycle to work and back 5 days a week (2-3 miles a day) and do an 8 mile ride at weekends with my son in tow, and so far I am very impressed. Could have gone for a higher spec, but to be honest, I am not that serious about off road biking and all the extra gadgets that come with a higher spec bike obviously comes at a higher price. So if you are considering a new, decent enough spec mountain bike, this is the one to go for!

Technical Information

  • 1

    Frame BTWIN SPORT MTB frame, in strengthened 6061 aluminium.
    Sports geometry, perfect for intensive mountain biking.

  • 2

    Fork NEW! BTWIN fork, 80 mm travel, with EASY hardness adjustment system: just turn the wheel to YOUR weight indication. You'll be off in a flash!
    High-quality dampers with surface treatment offering remarkably smooth suspension.
    High-quality steering ring mounts to prevent water, dirt and debris entering the blades: much more durable fork.

  • 3

    Suspension No rear suspension.

  • 4

    Drive train SRAM 22x32x42 triple-chainring crankset
    SRAM X4 rear derailleur
    MICROSHIFT M30 front derailleur
    New SRAM shifters with indicators for the 24 gears
    SRAM 11x32 cassette.

  • 5

    Brakes TEKTRO aluminium brake levers: lightweight and precise.
    HAYES MX5 front and rear cable disc brake for: powerful, progressive braking, even in rainy and muddy conditions.

  • 6

    Handlebar Rockrider SPORT handlebars - 600 mm (XS et S) and 640 mm (M, L and XL) wide.

  • 7

    Stem Rockrider SPORT stem, diameter 25.4 mm. Length: 90 mm (XS and S) or 110 mm (M, L and XL).

  • 8

    Steering Aheadset Rockrider SPORT headset, 1⅛".

  • 9

    Saddle Ergonomic B'TWIN SPORT Viper saddle in polyurethane.

  • 10

    Seatpost Rockrider SPORT 29.8 mm diameter seat post.

  • 11

    Wheels BTWIN SPORT double-walled rims, with 32 spoke eyelets,
    BTWIN SPORT hubs,
    Stainless steel spokes, 2 mm diameter: impact and corrosion-resistant.

  • 12

    Tyres 26 x 2.00 SPORT all-round MTB tyres for excellent lateral traction.

  • 13

    Pedals Wellgo MTB platform pedals with toe-clip for holding the foot firmly in place.

  • 14

    Accessories Compatible with mudguards, bottle cage, bag under the saddle, rear pannier rack etc.

  • 15

    Weight 14.07 kg in XS without pedals.

  • 16

    Electrical assistance No electric assistance.

Information / Concept / Technology

Stock advice

Store in a cool, dry place, away from corrosive products and salty air.

Care instructions:

Grease your chain regularly and check your tyre pressure often (recommended before each outing). Check your housing every three months and ensure screws and nuts are tightened properly.

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