Chain falling off

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Crandoggler

Senior Member
Bit of a funny one.

It's happened a few times now. When I'm cycling hard, usually downhill, or on a bumpy road, in my highest gears, my chain decides to either fall off the top, or the bottom.

It's as if it's too long, or not under enough tension.

It's happened with both the SRAM chain and the KMC chain.

Any ideas?
 

Sharky

Guru
Location
Kent
Check your freehub

If it is a bit dry, will keep turning, even when you are freewheeling and the chain catches up with the chain ring and comes off.
Another sign is a "growl" noise coming from the rear wheel.

Happened to me.
 
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