172.5 road, 175 mtn, what for cross? I have some Ultegra 170's that came on a road bike that I could use, or I have some Bontrager 175's. What is the theory for crank length on a cross bike?
What he said.atpjunkie said:go shorter so you can spin more and have clearance on off cambers. others would say go long so you can have extra leverage.
me Road 177.5
had one bike that came with 172.5's and they felt funny to my long legs. If you are a spinner go short,masher go long