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The XC MTB with a single SRAM NX 1X11 chainwheel

  • 15 - Cycling Cycling - Rockrider 900 27.5
  • 15 - Cycling Cycling - Rockrider 900 27.5
  • 15 - Cycling Cycling - Rockrider 900 27.5
  • 15 - Cycling Cycling - Rockrider 900 27.5
  • 15 - Cycling Cycling - Rockrider 900 27.5
  • 15 - Cycling Cycling - Rockrider 900 27.5
  • 15 - Cycling Cycling - Rockrider 900 27.5
  • 15 - Cycling Cycling - Rockrider 900 27.5
  • 15 - Cycling Cycling - Rockrider 900 27.5
  • 15 - Cycling Cycling - Rockrider 900 27.5
  • 15 - Cycling Cycling - Rockrider 900 27.5
  • 15 - Cycling Cycling - Rockrider 900 27.5
  • 15 - Cycling Cycling - Rockrider 900 27.5
  • 15 - Cycling Cycling - Rockrider 900 27.5
  • 15 - Cycling Cycling - Rockrider 900 27.5
  • 15 - Cycling Cycling - Rockrider 900 27.5
  • 15 - Cycling Cycling - Rockrider 900 27.5
  • 15 - Cycling Cycling - Rockrider 900 27.5
  • 15 - Cycling Cycling - Rockrider 900 27.5
  • 15 - Cycling Cycling - Rockrider 900 27.5
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15 - Cycling

B'TWIN Rockrider 900 27.5" Mountain Bike - Grey/Lime

B'TWIN
Designed for starting cross country mountain biking. Give it your best and surpass your limits on each ride. Discover cross-country MTB: its frame with XC geometry, the 100mm Manitou M30 fork, and its single chainwheel SRAM NX drive train will carry you wherever you want, as quickly as possible.
Decathlon
until £699.00 -%

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£699.00 %
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* From and limited stock
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PRODUCT BENEFITS
Efficiency Manage your energy: SRAM NX 1x11 drive train and MAVIC CROSS RIDE 27.5" wheels.
Lightweight Hit the slopes with its light 6061 aluminium frame with Cross Country geometry.
Precision On the 900 Series XC handlebars, the TEKTRO brakes give clean, accurate braking.
Shock absorption Cushion all impacts: 100mm MANITOU fork with quick-release on the handlebars.
Lifetime warranty B’Twin provides a lifetime warranty on the frame, stem and handlebar.
Discover your product in detail
TECHNICAL INFORMATION
The story of the Rockrider 900 mountain bike...

This mountain bike was fully designed and developed at the B'Twin Village (Lille, France) and is the brainchild of an expert team of mountain bike enthusiasts.
We have designed and tested this RR900 mountain bike for mountain bikers who want to surpass their limits and ride even faster when cross-country mountain biking.

A unisex mountain bike

Men's or women's mountain bike? The Rockrider 900 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.

Choosing 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 1.95 m
If you are on the limit between 2 sizes, we recommend following the exact size listed.

A frame designed to combine fun and performance

For the RR900, our teams have specifically designed the frame in T4 & T6 6061 aluminium (only 1.8kg in size M). It has been specially designed to meet the needs of those wanting to get started with cross country riding, very demanding in terms of durability and low weight.
73 mm BSA bottom bracket
Oversize diagonal tube
Conical tapered head tube
Available in 4 sizes: S/M/L/XL

Front suspension locks/unlocks on the handlebar

To overcome any obstacles you encounter, the Manitou M30 Air fork and its 100mm travel will always be there for you. Quickly lock and unlock the fork with the 2-position Combo Lock locking system on the handlebars.
1-1/8" aluminium conical pivot, 1.5" taper, for increased rigidity and light weight. Axle: 9 mm.Weight: 1.7 kg

Rear suspension: none

This mountain bike has no rear suspension.

Derailleur & drive train: single drive train for optimal performance

The RR900 inaugurates the new line of single-chainwheel SRAM drive trains. The SRAM NX 1x11 drive train ensures light weight, durability, precision, and better control of your mountain bike.
Chainwheel size: 30 teeth, easily replaceable (up to 32 teeth) without changing the chain.
SRAM PG1103 cassette with 11 cogs: 11, 13, 15 ,17, 19, 22, 25, 28, 32, 36, 42 teeth. The 42-tooth sprocket guarantees good gear reduction to help you climb the steepest sections.

Handlebar, stem, grips: keep control

Since cross country requires good control of your steering position, we equipped this mountain bike with an oversize low rise Rockrider 900 XC Series handlebar (slightly curved). Its 680 mm width guarantees good stability and optimal comfort when steering.
The ROCKRIDER XC stem is adapted to each size (80mm in size M, 90mm in size L, and 100mm in size XL)
Semi-integrated headset with sealed bearings.
ROCKRIDER 900 light lock on grips.

Saddle / Seat post: comfortable and sporty seat

Our designers have developed the new Rockrider 900 Series saddle to be lighter (only 265 g) and more comfortable during pedalling.
With a 29.8 mm diameter and 350 length, the B'Twin Comp seat post offers a wide range of adjustments and a raised riding position.

Double hydraulic disc brakes: incisive braking

The exclusive 160 mm TEKTRO TKD 32 double hydraulic disc brakes will stop you in all circumstances. With their 2 pistons, semi-organic pads, and aluminium body, they combine power and light weight, essential for cross country riding.
For even more efficiency, the brake levers have been specially designed to be quickly manipulated with 2 fingers.

27.5" wheels & lightweight all-terrain tyres to withstand XC rides.

The MAVIC CROSS RIDE FRS-X wheels made of S6000 aluminium will carry you over all terrain. Lightweight and durable, their 27.5" diameter guarantees an excellent balance between handling obstacles, comfort, and manoeuvrability.
The 27.5 x 2.1 HUTCHINSON PYTHON 2 tyres are recognized in the world of cross country for their excellent performance on dry, slightly rough terrain.

Platform pedals

The bike comes ready to use with B'TWIN FLAT PRO platform pedals. However, to optimise its performance, you can replace these with clipless pedals (not included).

Easily transport & store your mountain bike

The front and rear wheels can be mounted or removed in one easy step: you just need a hex key (size 6).
The rear derailleur has a pin that easily locks and unlocks to mount or remove the rear wheel.

Weight

11.8 kg in size S, without pedals. 12kg in size M, without pedals.12.2kg in size L, without pedals.
12.4 kg in size XL, without pedals.
The weight can vary based on the tolerance of the components. The bike is supplied with B'Twin Flat Pro platform pedals.
The total weight (bike + rider) should not exceed 120kg.

Our advice for your first ride

During your first outings, the equipment on your bike will gradually adjust itself (chain, dérailleur, brakes, etc.).We offer a free inspection in the 6 months following purchase, where our technicians will carry out a 13-point check of your bike. Access all our advice on handling your bike:
https://support.decathlon.fr/velos-tout-terrain-vtt-fr-tp_19822

Weight

S : 1M50-1M65: 11.8 kg
M : 1M65-1M75: 12 kg
L : 1M75-1M80: 12.2 kg
XL : 1M80-1M95: 12.4 kg

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COMPOSITION / ADVICE
Composition
Frame
100.00
Stock advice We recommend storing your mountain bike in a cool, dry place, away from corrosive products and salty air.
Restricted use : Not suitable for other disciplines: BMX, Dirt, Free Ride.
instructions To get more information about this product, please read instructions
OUR COMMITMENTS
Guarantee : Lifetime (frame, stem, handlebars). Details on btwin.com.Availability of spare parts: 2 years
 
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