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sports MTB equipped with lockout fork

Reference : 8206682

Rockrider 5.3 Mountain Bike, White

beginner or regular MTB riders, for cross country cycling on country or mountain trails. sports MTB equipped with lockout fork.

To view our full range visit our mountain bikes category.


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until £329.99 - %

From £329.99**

DecathlonDeeeTaxMentionAfterPrice /

Price in store £329.99 £299.99 **

Reserve & Collect

From To

** From 28/03/2014 To

* Sales from to Until end of stock
** Sales from 28/03/2014 to Until end of stock

From and limited stock

* Sales price at

From and limited stock

* Sales price at

* From and limited stock
** From 28/03/2014 and limited stock

Product benefits

    • Low weight / lightweight
    • Lightweight and reinforced aluminium frame; double-walled aluminium rims.
    • Cushioning
    • 100 mm adjustable suspension fork with lockout.
    • Accuracy / precision
    • 27-speed SRAM/Shimano chainset. Cable disc brakes.
    • Ease of use
    • Frame is compatible with a pannier rack and/or disc brakes.
    • Anatomic design
    • Sizes: S (155-165 cm) M (165-175 cm) L (175-185 cm) XL (185-200 cm)
    • Lifetime warranty
    • B’TWIN provides a lifetime guarantee for this bike's frame, stem and handlebar.
  1. Guarantee : lifetime warranty for frame, stem and handlebar on this bike Details at

Product information

S (1.55-1.65m) M (1.66-1.75m) L (1.76-1.83m) XL (1.84-1.90m)
14.4 kg
14.45 kg in size S

your reviews

4.2 / 5

20 reviews

17 people recommend this product

Write a review
Sort by :

Had it for just over 10 months, largeframe.

Light, agile for a big bike.

Wheels buckle too easy, gears, brake wear, saddle


  (United Kingdom)

Under 20 years old    Man

2 5

used for More than 1 year I had this bought for my 15th birthday and I have used this to and from school everyday and occasionally out on the weekends and after school with my friends around busy London, the gears became a little jumpy so I took it in and asked them to tune the gears which they done so (for free) but then I went back 2 months afterwards and said that I have the same problem and that I would like a service but they claimed that I'd already used my free service, so because of this I have used it as normal, trying to ignore the skippy gears even though a couple of weeks ago I almost got ran over because of the gear skipped and the chain came off and I almost got hit by a cab. And driving this bike up a slight hill the other day a car swerved and I had to slam my barely working brakes on, after I began pedalling, I changed gear to make it easier and *bang* the chain snaps and I almost get ran over by a bus . Yes this bike is cheap, yes it all seems good at first, but this is just like decathlon as it seems all good and friendly at first but in the long run it's not so good.

Response of the brand

thanks for the review on the RR 5.3.
Gears can slip and do require some adjustment as time goes on.  Many factors can influence this which are sometimes beyond the rider's control.
For sure it your gears were slipping and changing gear in these circumstances under pressure can result in chain damage in particular if the chain had been grinding for some time.
If you brakes are not working as well as they should then you may require new pads as they can wear out.
You'll need to keep up with your bike maintenance in particular if you use it everyday.  There are some great instructional videos available on you tube to guide you through the basics if you want to do it yourself.
If you wish, I can book your bike into your local store free or charge for a quick checkup and free service to make sure that your  bike is running smoothly.
Please get back in touch with me and I will arrange this for you at your local decathlon store..
Peter Lazarus UK Market Manager DECATHLON

Really good bike but

Great bike for the price



  (United Kingdom)


4 5

Have owned the bike for nearly a year must have done 500 to 800 miles been back 3 times to the shop, chain and gear issues and today the front hub is loose guy in shop says not a big issue should take me 10 mins to fix, but 3 to 5 days to sort as he was stuck on the tills it is a big issue for me, going a cycle holiday this weekend and no guarantee that ill have my bike not to good service

Rockrider 5.3 Mountain Bike: X8 bikes purchased!

Fantastic suspension, lockout forks and brakes!

My shed can only hold X8 of these awesome bikes!!


  (United Kingdom)


5 5

I've recently purchased X8 Rockrider 5.3's for use with my 'Freedive and Fitness' business on the Isle of Benbecula.
I decided to go for the Rockrider 5.3 after reading a couple of good reviews and researching the bikes specifications.
I have to say that these bikes really do Rock!! They sure hit the mark and go further still!
Superb riding position, very light, awesome sophisticated fast response and handling over rough troublesome terrain!
Service I received: second to none! A five star b

Maintenance Manual

Nice and Light & Easy to Use

Brakes often squeaky and saddle could be softer


  (United Kingdom)


4 5

Overall I am very content with my purchase, however, I am disappointed that the service provided when purchasing my bike was minimal and I did not receive maintenance manual or a toolkit despite requesting one. So it looks like I'll definitely be making use of my free service option

Response of the brand

Hello EJ,

Thank you for taking time to give us your feedback.

Great to hear that you enjoy your bike. I am sorry to hear that you were not happy with the service provided. Our stores usually do not provide any tools with your bike purchase, as we set up the bikes in store for your fit. Of course, you can take the bike anytime to your local store if you need further adjustments. If you still require a tool, please contact our Customer Loyalty Team.

The user guide and other useful information can be found at BTWIN's website.

We see you at your free service check;)

Yours sportingly,
Customer Loyalty Team - Decathlon

Great bike so far - just a few teething problems

Nice looking, good quality

Nothing really, bought higher stem to raise bars


  (United Kingdom)


5 5

Ordered on-line last summer & arrived in good condition with a small area of paint missing where the Sram attached to frame (assembly?) No protective packaging on bike and both bike and tools were loose inside the box! The Alan key supplied was the wrong size for straightening the bars but I had one anyway.

The rear break was rubbing so adjusted myself (cable tight rather than pads miss-adjusted) but otherwise great! - gears superb, wheels true and tyres fine for road use, no punctures yet!

Technical Information

  • 1

    Frame T4 T6 6061 aluminium; 1.90 kg in size L; sloping; reinforced tubes; light and responsive sports frame. Sloping: inclined top tube for superior handling and stiffness. Same geometry as the series 8 bikes. Can be fitted with a pannier rack.

  • 2

    Fork / Suspension Rockrider XCR 100mm lockout fork by SR Suntour: lightweight and durable coil spring fork. Pre-stress and lock adjustment. 100mm travel, magnesium shafts. The damper finish ensures long-lifetime.

  • 3

    Drivetrain 9-speed SRAM X-5 shifters; Shimano C050 front derailleur; SRAM X-5 rear derailleur; SRAM PC951 chain

  • 4

    Chainset / Cassette Suntour XCM 302 22x32x42 aluminium chainset with SRAM cassette

  • 5

    Brakes HAYES MX5 cable disc brakes. Effective and powerful braking even on difficult terrain such as mud.

  • 6

    Handlebar / Stem / Steering Oversize 600mm Rockrider Handlebar by JD; Rockrider 6° oversize stem by JD. Aheadset VP A71 headset: Raised wide handlebars help you stay in control in all situations.

  • 7

    Wheels RIGIDA SPHINX 32-hole rims; Formula disc ready DC19/DC22 hubs; Mach1 2 mm stainless steel spokes with sealed bearing hubs and disc brake-ready. Double-walled rims are extra solid.

  • 8

    Tyres New Hutchinson Python tyre

  • 9

    Saddle / Seat post Rockrider by JD seat post; new Rockrider Sport saddle

  • 10

    Weight 14.4 kg in size S, not including pedals

Information / Concept / Technology

Restricted use :

Not designed for: BMX, dirt, descent or racing.

Stock advice

This b'Twin mountain bike should not be stored outdoors for long periods of time. It should be stored in a cool, dry place, away from corrosive products and salty air.

Care instructions:

we recommend reading and following the maintenance instructions found in the manual that comes with your Rockrider bike. The RECOMMENDED three-month safety check is FREE.