One of the resons I switched to 700C rims is more tire selection. I put bigger tires on my touring bike I had 700x28s to small in my mind. I put some test tires on 700x35. I borrowed a tire from Dillan and gave him my old fenders. I could not get the bigger tires to fit under my fenders. The fit his bike very nice. I dropped off my bike to get measured up for fenders at the bike guy and ski.