On Tue, 2007-06-26 at 08:00 -0500, Class Guy wrote: > There is more to it than surface area. Distance from the rotating > center means greater stopping power due to the leverage. Pure > physics. It's the reason race cars use such large diameter disc > brakes while the calipers/pads remain the same. Thanks for the reply. Yeah, I thought diameter (lever length) would be a factor, and in road racing etc I can see your point. But a 1/2" bigger lever? Is it worth it? Wouldn't simply a 1/8" larger wheel cylinder create enough force such that a 9" brake would be equiv. to a skinnier 10" brake? I realize that wouldn't scale up much though. _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://www.amc-list.com/mailman/listinfo/amc-list