U-brakes Bicycle brake

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u-brake on freestyle bmx bike


u-brakes (also known trademarked term 990-style ) same design centre-pull caliper brake. difference 2 arm pivots attach directly frame or fork while of centre-pull caliper brake attach integral bridge frame mounts frame or fork single bolt. roller cam brakes, caliper design pivots located above rim. u-brakes interchangeable with, , have same maintenance issues as, roller cam brakes.


u-brakes used on mountain bikes through 1990s, particularly under chainstays, rear brake mounting location popular. location benefits higher frame stiffness, important consideration powerful brake since flex in stays increase lever travel , reduce effective braking force. unfortunately prone clogging mud, meant u-brakes fell out of favour on cross-country bikes.


u-brakes current standard on freestyle bmx frames , forks. u-brake s main advantage on cantilever , linear-pull brakes in application sideways protrusion of brake , cable system minimal, , exposed parts smooth. valuable on freestyle bmx bikes protruding parts susceptible damage , may interfere rider s body or clothing.








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