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Sports hub Partner

Rockrider 340

My son's just had the bike a couple of months. Occasionally the chain jumps off the front large chainring. Looking at it more closely I see there are several small teeth on this chainring. Is that the cause and why are they like that? Bike only gets light usage.
Sports hub Partner

Re: Rockrider 340

P.s. one pedal has just fallen off, ripping out the thread on the crank arm. My son only uses it for paperbound, so am a bit worried now about quality of this bike or am i unlucky and bought a badly made one. Are these parts guaranteed?
Amateur Player

Re: Rockrider 340


I'd 100% suggest you return the bike to your local store so that they can resolve these issues for you. It will be covered under the warranty.
B'Twin Product Expert, Decathlon Tamworth
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