The Campagnolo Centaur 11 Speed Cassette has had its tooth profile completely redesigned to be in line with the rest of the Campagnolo 11-speed groupsets. The Centaur sprocket tooth design reduces the level of stress on the chain which ascends easier onto the higher diameter sprockets; even when shifting across increments of 3 or 4 gears at a time. Aluminium Weight: 291g