thanks, all. additional q's:
1. why are canti's preferred over caliper brakes for touring bikes? is this a bike weight issue where more mechanical advantage is desired? or is this a clearance issue?
2. are modern steel touring bikes more likely to use canti's or calipers?
3. are modern steel road bikes offered with nutted calipers? or is this really a thing of the past?
just curious. B^)