Campagnolo Centaur 11s Ultratorque Crankset (Black)Many top features are packed into the Centaur crankset. The four arm design allows for independent bolt circles, offering greater stiffness and structural integrity, and also provides additional versatility, as a single crankset is compatible with both standard compact and semi compact chainrings. Add these features to the first aluminium crankset with an ULTRA TORQUE axle and the result is a component that is very similar to the top of the range