Below is an earlier photo of my '82 720. Soma Supple Vitesse EX 700x42mm tires on Mavic MA2 rims. Tires measured 38mm wide and the Tektro R737 dual pivot calipers juuuuust cleared in front. Rear was fine. No dimpling on the chainstays needed. 700x33mm tires (30mm actual, same rims) with fenders worked well.
