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Join Date: Feb 2012
Location: Rochester, NY
Posts: 18,132
Bikes: Stewart S&S coupled sport tourer, Stewart Sunday light, Stewart Commuting, Stewart Touring, Co Motion Tandem, Stewart 3-Spd, Stewart Track, Fuji Finest, Mongoose Tomac ATB, GT Bravado ATB, JCP Folder, Stewart 650B ATB
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The Bont and Shimano direct mount brakes have a design feature which changes the cable pull/pad movement ratio. It is possible that the shop didn't choose the correct set up. Having said that I don't like these brakes. I've only dealt with a half dozen, or so, of them and don't yet have all the tuning aspects down pat (or I would have been far more descriptive in the cable pull adjustment). But they suffer from centering challenges and as alluded their set up is different them classic calipers. One aspect is that one can't rotate the entire caliper to effect the centering. Instead the cam gets moved to prod the arms to center. Failure to do this means that one pad will contact the rim first, then the other second. A sure way to decrease the clamping pressure. Andy.