Originally Posted by
ClydeClydeson
Something that can make a big difference is chainring quality - shifting on a set of FSA rings is significantly inferior to that on Shimano rings. that alone could be worth the trouble for the upgrade - new Shimano rings to fit the FSA crank will probably cost similar to a Claris crank & BB.
This would be my reason to upgrade to a Hollowtech II crank. It probably would be a bit stiffer than the square taper crank that you have now but not noticeably lighter