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Bike chain falls off when I back pedal

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Bike chain falls off when I back pedal

Old 06-22-23, 11:04 PM
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It has nothing to do with the brand of the bike or whether it has a freewheel or cassette on the hub cluster. When you pedal in the right direction, the rear derailleur guides the chain onto the selected cog. When you backpedal, the chain moves in the opposite direction, directly from the selected chainring to the selected cog on the rear hub. If the chainring and the cog aren't in alignment, as when the chain is crossing over from an outer chainring to an inner rear cog, it will fall off. So the solution is, don't backpedal.

Actually, a quick flip of the crank to get a pedal in the right starting position will usually not move the chain enough to derail it. If it does, a couple of turns in the right direction will usually get it back on.
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