Originally Posted by
Rover88
Just to double check, will the 9 speed crank will work with my 8 speed chain?
It depends. A number of late-model bikes with 8 speed drivetrains actually have 9-speed chains installed from the factory. My FIL's Felt 29er was this way, so when I upgraded him to 9-speed (using parts I had sitting around), his existing chain did actually work. Check your chain for a model number and see if it's 8 or 9 speed.