Can I use 9 speed chain on/with an 8-speed cassette?
The chain I currently have is a 6/7/8 speed chain and rubs on the large chainring when it's in the smaller chainring (in certain gear combinations). The double crankset doesn't seem to like the wider chain - I think it's 9-speed compatable. Would like to change it to a narrower chain to make the rubbing stop. But not sure if the 9-speed chain will interface properly with the 8 speed cassette.