I was looking at going from my center pull old school cantis to the tektro (or similar) long reach calipers. I'm going to be going to 700C wheels from 27".
I have a whole on the crown part of my fork (see picture below) and a similar hole on the rear wheel crossmember. They used to be for the Reflectors. Could I mount the calipers in the those holes? They seems like they would measure out correctly. Are those spots strong enough for caliper brakes, and the forces of braking in general. It is a columbus tenax steel frame (1986 Schwinn Voyageur).
Thank you for the advice,