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all your need for recreational MTB:sturdy 21 speed

Reference : 8202062

Rockrider 5.0, Mountain Bike, Black

discovering mountain biking and off-road outings on paths and trails. all your need for recreational MTB: sturdy 21 speed.

To view our full range visit our mountain bikes category.


Please select a size

Please select a size


until £109.99 -9 %

From £99.99**

DecathlonDeeeTaxMentionAfterPrice /

Price in store £109.99 £99.99 **

Reserve & Collect

From 23/07/2014 To

** From 15/07/2014 To

* Sales from to Until end of stock
** Sales from 15/07/2014 to Until end of stock

From and limited stock

* Sales price at

From and limited stock

* Sales price at

* From 23/07/2014 and limited stock
** From 15/07/2014 and limited stock

Product benefits

  1. 1
    Ease of useWide and raised steering position. Front wheel is removable without tools.
  2. 2
    DurabilityReinforced steel frame for added durability.
  3. 3
    CushioningWide, semi-slick all-purpose road and trail tyres.
  4. 4
    Accuracy / precisionV-brakes for 2-finger braking.
  5. 5
    Anatomic designSizes: S (155-165 cm); M (165-175 cm); L (175-185 cm)
  6. 6
    Lifetime warrantyB’TWIN guarantees the frame, stem, handlebar and rigid fork for life.

Guarantee : lifetime warranty for: frame, stem, handlebar and rigid fork on this bike. Details on


Product information

14.450 kg
S: 1.50-1.65 m; M: 1.66-1.75 m; L: 1.76-1.80 m
Rigid steel fork
Wheel size
26 inches

your reviews
(15 reviews)


, The 07/04/2014

4 5

the 21 gear and he grip shift

it doesnot have suspesons

its a good cycle but its not so good because of suspenson

Poorly assembled

, The 26/03/2014

1 5

Good customer service

Fell apart on first ride

I'm unable to give a proper review of this as a bicycle as I've not been able to actually ride it properly due to the number of faults that I've encountered. First bike was delivered with a broken derailleur and was replaced very quickly by decathlon. The second bike developed a fault with the crank arm, which fell off after less than ten miles whilst cycling on what was thankfully not a very busy road. Very disappointed in this bike.

Response of the brand


We seem to have come up short regarding the pre-dispatch inspection on this occasion.

We will be in touch with you very quickly to find a solution.

Please accept our apologies for this.


Peter Lazarus
UK Market Manager - Decathlon


, The 18/02/2014

1 5



To follow up on the review below, I took the bike to the workshop, and after half an hour working on it, I was told it was a simple screw adjustment for front derailleur and replacement cable for rear. (bike only 4 months old) After testing next day, front derailleur problem exactly same. Took bike back today and now it is being kept in workshop for at least 5 days as there has been a fault diagnosed, which on inspection is very clear to see. 4 months old, 3rd visit for repair. Not great.

Response of the brand

Dear Sir,

Sorry to read that you've encountered issues with your bike.

It is not uncommon that gears require adjustment early after purchase as the cables do tend to stretch. However if there is a fault with the part, then indeed it will be covered under our two year parts&labour warranty under normal use.


Peter Lazarus
UK Market Manager - Decathlon

rock rider 5.0

, The 26/01/2014

5 5

very strong frame

a bit heavy

Bought rockrider 5.0 3 years ago to see if I liked mountain biking,have riden it every week through the forest and off road trails.after covering well over a thousand miles. The bike has been hardly ever cleaned just oiled the chain ,the sprocket have now finally failed,not bad for £100 .

Needs Constant Attention

, The 21/01/2014

3 5

Price, sturdiness, style, comfort, colour

Tyres, gears, brakes

I like BTwin, I love my Triban 5 roadbike. The Rockrider 5.0 is cheap and could be cheerful. I bought it in November 2013 as a commuting bike. 4 punctures in the first 3 weeks so changed tyres. Braking was inconsistent so changed those too. Now rear gears are failing, despite much time spent on indexing. You get what you pay for and in hindsight I should have paid more for a product better suited to my needs. Decent bike for very occasional use though. Not recommended for more regular outings

Response of the brand

Dear Sir,

I'm sorry to read that you're encountering difficulties with your gears. Don't forget to claim your free bike check-up at your local decathlon store.

Regarding the tyres, the 2014 version (out soon) is upgraded to improve durability.

Peter Lazarus
UK Market Manager - Decathlon

Technical Information

  • 1

    Frame Sport geometry; HI-TEN steel; oversize tubes; five sizes (3 men's, 2 women's). Wide steel tube provides more comfort and durability. Because it is easy to adjust, the bike is comfortable to ride and offers superior control.

  • 2

    Fork / Suspension Rigid fork made of steel for added comfort.

  • 3

    Drivetrain Shimano TZ30 front derailleur; Shimano rear derailleur; KMC Z51 chain. Change speeds using SRAM MRX 21-speed (3x7) grip shifters.

  • 4

    Crankset / Cassette 24x34x42 steel crankset. The steel crankset with a plastic protective piece is tough and reliable. 21 speeds (3x7).

  • 5

    Brakes Aluminium 2-finger brake levers; helical spring V-brakes. A powerful and progressive braking system. One finger is all it takes to stop at any time. Anti-corrosion treatment on the screws.

  • 6

    Handlebar / Stem / Steering 580 steel handlebar; steel headset stem; steel components guarantee the bike's strength and durability over time. This Headset assembly provides added stiffness as well as greater resistance in the event of a frontal impact; steel headset stem; steel components guarantee the bike's strength and durability. This Headset assembly provides added stiffness as well as greater resistance in the event of a head-on impact.

  • 7

    Wheels 36-hole aluminium rims to lower the weight. Quick-release front hub is handy when you need to take off the wheel to transport the bike in your car, store at home, or for repairs.

  • 8

    Tyres 26x2.0 semi-slick tyres are the ideal balance for city and country cycling.

  • 9

    Saddle / Seat post Wide and comfortable PU MTB saddle. Comfortable positioning helps you stay in control of your bike. Steel components ensure the bike's durability and longevity. HL SP200 steel seat post.

  • 10

    Pedals VP platform pedals with bearings. Steel components ensure the bike's strength and durability.

  • 11

    Weight 1445 kg in size S without the pedals

Information / Concept / Technology

Restricted use :

Not suitable for Mountain biking 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.