Originally Posted by
JohnDThompson
If you're accustomed to the mechanical advantage of dual-pivot calipers, braking with a single-pivot side pull can be disconcerting. Like you, I have no problem stopping my bike with Campagnolo Record side-pulls and their various clones from SunTour, Gran Compe, etc. But it does take decidedly more effort than a dual-pivot caliper.
I had no issues with Campagnolo Record brakes as a lad, but developing RA in my forties left me with reduced hand strength. Replaced with Shimano dual-pivots (7403 and 6500) resulted in much better ability to stop given what I can put to the levers...