J
Johns
Guest
On a XT 9-sp transmission set-up I've just replaced the chain (following HG failure) with a PC59
item plus I've renewed the middle front ring. Got the chain length right and gears shift nicely on
the bench. Under load (even fairly light) on the road/trail the chain is jumping. Not between gears
just within same gear. Can't work out exactly how and where. Jockey wheels are fairly new, cassette
less so but doesn't appear very worn - hard to tell without a fresh one to compare. Wonder if I've
bent the mech at some point. Cage isn't dead vertical (slightly angled in) when in most gears. Would
you expect to replace the cassette with each chain? John S
item plus I've renewed the middle front ring. Got the chain length right and gears shift nicely on
the bench. Under load (even fairly light) on the road/trail the chain is jumping. Not between gears
just within same gear. Can't work out exactly how and where. Jockey wheels are fairly new, cassette
less so but doesn't appear very worn - hard to tell without a fresh one to compare. Wonder if I've
bent the mech at some point. Cage isn't dead vertical (slightly angled in) when in most gears. Would
you expect to replace the cassette with each chain? John S