Originally Posted by
clubman
Since you're replacing the crank, there's no need to worry about chain line now. The gap between the chain stay and your crank arm suggests the spindle is too long. When I mount a triple, I try to get the small ring tucked in towards the BB fixed cup as far possible without risking the teeth gouging the frame under flex. That should take care of chainline.
Thanks, so get cranks then determine BB width?
Patrick