Rockrider 340 Mountain Bike - Grey



₹ 15,999


₹ 14,999

Reduced price! Rockrider 340 Mountain Bike - Grey

Made for

Occasional mountain bike sport touring.
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 speeds.

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Cycling comfortRaised position. Ergofit ergonomic saddle. 80 mm front suspension.
EfficiencyAluminium frame. 21-speed Shimano.Wide rims, tyres suited to faster terrain.
PrecisionDouble V-brakes: powerful and lightweight. Tyres have good lateral grip.
Ease of useGrip shifters. Built-in chainring and derailleur guard.
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

Exclusive Rockrider 340 frame with a raised steering position for multi-purpose use. Made from reinforced 6061-T4T6 aluminium that combines durability and low weight. "Sloped" unisex frame geometry is suitable for both men and women. Painted with 3 coats of paint and varnished designs for long-lasting protection.
Suntour XCT fork with 80 mm of travel and a stiffness adjustment dial.
No rear suspension. Weight adjusting front suspension.
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.
Front and rear V-brake system with a helical spring for more powerful braking. Aluminium MTB brake levers that require only 2 fingers to operate.
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 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.
B'Twin Sport 100 saddle with high density foam for added comfort.
Seat post
Steel MTB seat post with a 29.8 mm diameter and 350 mm long.
B'Twin Alloy Single Wall 26" wheel with single-walled rims. Wide for longer-lasting durability. 36 spokes for greater resistance to impact. Quick-release on the front wheel for easier maintenance, transport and storage. Lock nut on back wheel to reduce risk of theft.
New Ralson Mountain Bike 26" x 1.95 tyres. High-performance tyres with buttons best suited for on road and short trails.
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).
14.85 kg in size M without pedals.
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.
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 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 check up is valid only if the user is able to take the bicycle to a decathlon workshop.4) All bicycle accessories need to be purchased separately.
Information / Concept / Technology
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.



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saddle is uncomfortable and rims are corroded
Used for 1 week or less
i bought it from decathlon Ludhiana 2 days ago. saddle is too hard to sit on. and i found that rims are corroded. apart from it everything else is great about this product.
AUSUM loved it
Used for 7 to 12 months
IT is an best bike for little money very nice bike
first day experience
Used for 1 week or less
received the bicycle . the front wheel was missing the tightning key and the axel provided was shorter had to fix it from local shop. the bicycle is just perfect to use.
Good bike but issue with the seat
Used for 1 week or less
I just bought the Bike the day before and looking at beginning cycling on a regular basis. Am looking at mostly riding it on city roads and an occasional trail.
While the bike rides smoothly, I don't find the seat comfortable at all. Even after putting a cushioning seat cover. It's probably because the seat is too small. Is it possible to replace the seat with another Btwin seat which is wider and more comfortable?
really good bike
Used for 2 to 8 weeks
really amazing bike . really good for occasional off-roading . great use as a city bike too . great control . shifting is a bit sloppy and why does the 3 speed grip-shifter have 7 parts? . due to this the front chain guard has worn out in 6 weeks
Response of the brand

Hello Praneeth,

Thank you for taking the time to give us your review. The FD has a series of shifting because the shift required to derail the chain is high compared to the rear derailleur. Since the gap is high between shifts there has to be a series of shifts for the transition to happen. I remain available for more questions. 
Praneeth found this answer helpful
My Reliable friend
Used for 2 to 8 weeks
I got to work everyday on rockrider 340 and it gives a super satisfying super smooth experience on road. Everything is right about this machine except for few things I've noticed. The left side shifter is a little misaligned. I have to shift it to around 2.5 to actually get 2. To get to 3, I have to spin it all the way to 3 and twist it beyond 3 (the spring reacts to it. If we release, it comes back to 3) and keep it there while giving a gradual pedaling. If I pedal a bit faster, and it won't go to 3. Second problem I've noticed, when I go through rough terrain and I'm sitting on the saddle, it makes a slight shearing noise. Am I not supposed to sit when the rear wheel is on irregular terrain?
Response of the brand
Hello Sujith, 

Thank you for the comprehensive and detailed review of the bike. With regards to the sound that is being created in undulating surfaces, it is possible that the seat post is not clamped firmly. It is also possible that there is a problem with the saddle clamp. I suggest you visit our workshop to have the problem addressed to be our technition. 

It is not required to stand on irregular surfaces, you can remain seated. Sometimes cyclists tend to stand on very irregular surfaces to avoid vibration. 

Rockrider 340 Modified
Used for 7 to 12 months
Really good and value for money bike
I had modified it by putting 26 × 2.00 "btwin all terrain tyres
And lights and a frame bag due to club
But the bike is really good
The gear shifting is slightly poor and after 6-7 months the gears slip a lot good V brakes but saddue was quite hard
Bang for The Buck!
Used for 2 to 8 weeks
I chose Decathlon because I heard that their service is good and their employees respond properly to the customer's complaints (instead of giving looks sour enough to curdle milk). I was not disappointed.
The cycle is sturdy enough to take the brunt of badass commuting as well as beginner trails (pushing it further is not a good idea).
The brakes are fine, but Bangalore weather can make the wheel squeal, like one of those annoying/spoilt kids on a night train, on certain occasions (this is rubber brake pads against wet aluminium rims). Nothing that a good wipe can't solve.
The shifters are smooth enough for a noob like me to get used to. And anyone with half a brain can learn how (and when) to shift gears in a week or so, until then go easy on those shifters cowboy. After a point shifting will barely produce any noise and you'll know that the gear has changed only from the resistance through the pedals!
The geometry of the bike can be a bit hard. Don't hesitate to experiment with various saddle/handlebar heights. And get get the correct frame size!
The tires also seem to be fine. Have't had a puncture till now (touch wood!).
The saddle is hard as CBSE 12th mathematics paper. Get used to it or get yourself one of those gel saddles and/or padded shorts.
If you are just getting into mountain biking and you happen to be one of those perennially broke folks, this cycle is the best choice for you. Hang on to this until you've saved up enough to get a better bike. Until then, Decathlon's service folks will take care of it for you.
Its good for small trips
Used for 7 to 12 months
I m using it since 5months and I enjoyed cycling for100 and above 120kms also initially it was working good but now it's giving an irritating sound and I've seen decathlon twice but they are unable to rectify and said that its made for up to 20kms only and I was hurt hearing this so I don't wanna it to be the situation with u guys also
Response of the brand
Hello Sandeep, 

Thank you for taking the time to give us your feedback. Apologies for the wrong information provided. The bicycle can be ridden on distances which best suits the cyclist. What I meant by that is, the bicycle will go as far as the cyclist wants to go. The Rockrider 340 can be used for long distances, provided it is serviced at regular intervals. Any problem related to the bike must be addressed at the earliest to prevent other parts from wearing out as well. The drive train problems can arise depending on usage. It can definitely be fixed in the workshop. I suggest you do give it a shot again explaining what I have mentioned do let me now if your problem is still not solved. I remain available. 

Deepak BABU
Best Best Best
Used for 2 to 8 weeks
Using rockrider 340 since 3 weeks. Best bike for city as well as offroad touring. Charming looks, very comfortable to ride. Feel of owning a premium product. Gear shifting is not bad, actually you need to get used to its settings, don't expect that if gear shifter points at 2 then bike is on 2nd gear, it may need a twist upto 2.5 and likewise. Even I had a complaint of pain in crotch bone on first day, I blamed saddle and its hardness but I read some opinions on this and continued cycling and found that, those who are cycling after a gap of more than a year may have this problem but continue cycling, the pain will vanish.