Rockrider 340 Mountain Bike - Yellow

8359008

B'TWIN

Made for

Adults who are looking for city commute, occasional mountain bike and sport touring. Front suspensions give you added comfort.
The first true touring mountain bike: comfortable thanks to a more upright seating position and front suspension. A lightweight aluminium frame and Shimano tourney 21 speeds.

Sizes guide

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Advantage
Cycling comfortRaised position. Ergofit ergonomic saddle. Innovative front suspension, 80 mm.
EfficiencyAluminium frame. 21-speed Shimano.Wide rims, tyres suited to faster terrain.
PrecisionDual V-brakes: powerful and lightweight. Tyres have good lateral grip.
Ease of useInnovative fork adjustment system based on rider's weight. Grip speed shifters.
Lifetime warrantyB'Twin offers a lifetime warranty on the frame, stem and handlebar.
WarrantyFrame, handlebar and stem have a lifetime warranty. 2-year warranty for parts (excl. wearing parts)
Technical Information

1
Frame
Exclusive Rockrider 340 frame with a raised steering position for multi-purpose use. Reinforced 6061-T4T6 aluminium that combines durability and light weight. "Sloped" unisex frame geometry is suitable for both men and women. Three layers of paint and varnished decorations provide lasting protection.
2
Fork
B'Twin U-Fit 80 fork, with 80 mm of travel: Innovative fork stiffness adjustment based on rider's weight (55 to 105 kg). Durable thanks to the materials and fabrication processes used. Mechanical spring with an elastomer stopper for maximum reliability and minimum maintenance.
3
Suspension
No rear suspension. 80 mm front suspension.
4
Drivetrain
Triple chainring steel chainset (22/32/42 teeth), with a plastic guard. Shimano TY21 7-speed rear derailleur. Shimano TZ30 or Microshift MS22 front derailleur. SRAM MRX21 grip shifters with speed indicators. Shimano TZ21 cassette with 7 cogs, 14-28 teeth. KMC Z51 chain, wide for greater durability.
5
Brakes
Front and rear V-brake braking system with a helical spring for more powerful braking. Aluminium MTB brake levers that require only 2 fingers to operate.
6
Handlebar
Semi-raised mountain bike handlebar for added comfort while riding. 600 mm wide steel handlebar that combines comfort and stability.
7
Stem
Aluminium stem, 90 mm (XS / S / M) or 110 mm (L / XL), with a 10° angle for maximum comfort.
8
Steering
Aheadset-type headset for greater resistance to impacts and rigidity in turns. B'Twin Sport 300 grips have a soft-touch finish for better grip and to extend the grip shifters.
9
Saddle
Exclusive B'Twin Ergofit saddle with a wider "hammock" shape that evenly distributes pressure, resulting in a more comfortable seat.
10
Seat post
Steel mountain bike seat post with a 29.8 mm diameter and 350 mm long.
11
Wheels
B'Twin Alloy Single Wall 26" wheel. Wider for greater durability. 36 spokes for greater resistance to impact. Quick-release on the front wheel to make it easier to maintain, transport and store. Lock nut ( no quick release) on the back to reduce the risk of theft.
12
Tyres
New B'Twin All Terrain Dry Mountain Bike 26" x 2.0 tyres known for their high performance (thanks to a faster middle tread section) and good grip in the turns (thanks to the side lugs).
13
Pedals
Flat mountain bike pedals with bearings, made from hard resin for less weight and added safety (less aggressive in the event of a slippery pedal).
14
Weight
14.85 kg in size M without pedals.
15
DISCLAIMER
1) The components seen on the bicycle in the videos may change from the actual product. 2) The bicycle will be delivered in 85% assembled condition. The directions for the cycle assembly will be given in the box and also sent via mail ( if you have subscribed). The tools for assembly are provided with the cycle only for online buyers. 3) The 3-month, free cycle check up is valid if the user is able to take the bicycle to a decathlon workshop.
16
SERVICES
If you will need a spare part​ to be replaced, we have it all at our workshop. You will have to drop by our workshop to get your cycle serviced.
characteristic
SizeS / M / L

Wheel Size26 inches

Weight14.85 kg in M without pedals

Life warrantyframe, stem and handlebar.

Suspension80 mm suspension fork

ColourOrange/Black
Information / Concept / Technology
Composition
Frame : 100.0% Aluminium

Product test
We recommend that beginners wear cycling shorts with a protective pad and/or a gel saddle cover to reduce soreness.

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

Maintenance tips
Regularly maintain your fork (clean and grease dampers), especially in winter. Take your bike to your Decathlon store's After-Sales Service, which offers a free safety inspection on all new bikes purchased.

Reviews

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GREAT BIKE,
The gear shifting is a problem
Very good quality product by bTwin.......
Used for 2 to 8 weeks
There are some accessories which are not compatible like the carrier, and the usual front mudguard. Also the front mudguard is too high and hence all the mud will fall on you!!On an overall, it is very good. Go ahead and buy it.
Front suspension and gear system
some accessories are not compatible......
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