Originally Posted by
pm124
Yangmusa, yes, try adjusting it. Jur's excellent advice about the chain is good, perhaps taking a link off will help. The only other advice I have is to be Zen and quick when folding it.
Actually looking at the chain length was his own idea.
Now that I know where the chain is falling off, well I have the same. In my case it is caused by me replacing the long cage derailer (Alivio) with a medium cage one (XT), which doesn't gather the same amount of chain, so the chain becomes slack and if I'm not careful about making sure it stays hanging on the catcher, it will fall off.
I'm putting a long cage RD (LX) back on this weekend; I need the medium cage XT for another project.
