There's quite a lot on this if you google around. All things equal - i.e. you change your gearing to compensate - I suspect the difference between 170-175 for folks on medium to large frames is negligible, but if you have shorter legs you might feel it.
There's quite a lot on this if you google around. All things equal - i.e. you change your gearing to compensate - I suspect the difference between 170-175 for folks on medium to large frames is negligible, but if you have shorter legs you might feel it.