Bicycle Mechanics - help ! chain keeps crashing
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10-02-05, 12:33 AM
everytime i stand to pedal, especially if i do a fast sudden surge , like a sprint almost, my chain keeps crashing, it doesnt switch gears it just feels like the chain falls off but then it regains itself....i just had this bike tuned up about a month ago...should i bring it back?
Sounds like the chain is skipping teeth. This will happen if the chain is new and the cogs worn. Did they replace the chain in the tune-up? If so, you will need to get a new cassette.
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