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Alu frame, front suspension, Shimano 21 speeds.

15 - Cycling Cycling - Rockrider 340 Mountain Bike - White B'TWIN - Bikes
15 - Cycling

B'TWIN Rockrider 340 26" Mountain Bike - White

Designed for regular, moderate intensity mountain bikers looking for thrills! The first true touring mountain bike: comfortable thanks to a more upright seating position and front suspension; efficient thanks to a lightweight aluminium frame and Shimano 21-speed drivetrain.

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From : 28/06/2017 with this item
Reference : 8378513
Cycling comfort Raised position. ERGOFIT ergonomic seat. 80 mm front suspension.
Efficiency Aluminium frame. 21-speed Shimano. Wide rims and tyres for faster terrain.
Precision Double V-brake: light and powerful. Tyres with good lateral grip.
Ease of use Grip shifters. Integrated chainring and derailleur guards.
Lifetime warranty B'Twin provides a lifetime warranty on the frame, stem and handlebar.
XS / S / M / L / XL
14.85 kg in M w/o pedals
26 inches
frame, handlebar and stem
Design The ROCKRIDER 340 was designed and created in France, at the B'Twin Village in Lille, by a team of experts and cycling enthusiasts dedicated to designing our mountain bike Sport Touring line. Production took place in different factories in Europe as close to our Decathlon stores as possible. More information available on our website:
Frame Exclusive Rockrider 340 frame, with an upright position for multi-purpose use. Made from reinforced 6061-T4T6 aluminium that combines durability and low weight.
Unisex, "sloping" geometry for both men and women.
Painted with 3 coats of paint and varnished designs for long-lasting protection.
Front suspension Suntour XCT front suspension with 80 mm travel and stiffness adjustment dial.
Equipped with a mechanical spring and elastomer stoppers for maximum reliability and minimum maintenance.
Rear suspension No rear suspension.
Drive train Triple-chainring steel chainset (22/32/42 teeth) with a plastic guard.
Shimano Tourney TY500 7-speed rear derailleur.
Shimano TZ30 or Microshift MS22 front derailleur.
SRAM MRX21 speed grip shifters, with speed indicators.
SHIMANO TZ21 7-sprocket cassette, with 14 to 28 teeth.
KMC Z51 chain that's wider for more durability.
Brakes Front and rear V-brake system with a helical spring for more powerful braking.
Aluminium mountain bike brake levers that require only 2 fingers to operate.
Handlebar/stem/steering/grips Semi-raised mountain bike handlebar for added comfort while riding.
600 mm wide steel handlebar that combines comfort and stability.
Aluminium stem, 90 mm (XS / S / M) or 110 mm (L / XL), with a 10° angle for maximum comfort.
Aheadset-type headset for greater shock resistance and more stiffness in turns.
B'Twin Sport 100 grips have a soft-touch finish for better grip and extend the grip shifters.
Wheels 26" B'Twin Alloy Single Wall wheel.
Wide wheel with 36 spokes for greater durability and shock resistance.
Quick-release on the front wheel for easier maintenance, transport and storage.
Lock nut on back wheel to reduce risk of theft.
Tyres New B'Twin All Terrain Dry mountain bike 26" x 2.0 tyres known for their high performance (thanks to fast central tread) and good grip in the turns (thanks to side lugs).
Saddle / seat post Exclusive, wider, "hammock" style B'TWIN ERGOFIT saddle for good distribution of pressure points to make it more comfy.
Steel mountain bike seat post with a 29.8 mm diameter and 350 mm long.
Pedals Bike comes with MTB platform pedals with bearings, made from hard resin for lower weight and greater safety (less aggressive in case of pedal that slips).
Weight 14.5 kg in size XS without pedals.
14.8 kg in size S without pedals.
14.85 kg in M without pedals.
15.0 kg in size L without pedals.
15.2 kg in size XL without pedals.
Accessories Comes with a derailleur guard and chainring guard, bell, front and rear lights, and reflectors on the wheels and pedals.

Frame compatible with a rear pannier rack, baby seat, stand, bottle holder, front and rear mudguards, saddlebag, etc.
Frame (for bike)
100.00% Aluminium 6061
Care instructions: Regularly maintain your fork (clean and grease dampers), especially in winter. Take your bike to your Decathlon store's customer service workshop, which offers a free safety inspection on all new bikes purchased.
Stock advice Store in a cool, dry place, away from corrosive products and salty air.
Restricted use : Not suitable for XC, All Mountain, Enduro, BMX.
Test Product We also recommend that beginners wear cycling shorts with a protective pad and/or a gel saddle cover to reduce soreness.
Guarantee : Lifetime (frame, stem, handlebars). Details on of spare parts: 2 years.

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