A superlight and super strong carbon clincher aero wheel to be used with disc brakes newto make the most of punchy terrain with repeated short steep climbs twisty descents and fast flats any high end race bike with disc brakes should be set up for speed and for the truly competitive this cosmic pro carbon sl c disc is the go to carbon clincher disc wheelsetthe unique rim design makes it super strong while its unique shape also provides extremely low rolling resistance and high comfort than