Originally Posted by
Plainsman
cool, I appreciate that. The frame I’m using was a complete bike parted out. Just saw a pic of the breakdown. Looks like the original crankset was 7/8 speed with a 68x110.5. Is moving to a 10 speed cassette the reason to go 113 I wonder?
Your 135mm rear end has more to do with it than that. When Shimano went from 7-speed to 8-speed, the cassette only got about 3.5mm wider, with the remainder going onto the non-drive side. That works out to less than a 2mm difference in the chainline, and my preference is to keep the crankset in as far as possible so that the big ring works cleanly with the whole cassette.