The legendary ratchet system drive system will last for many years and provide all the performance needed to ride in a pro peloton or on your local shop ride the 240s non disc versions come stock with 11 speed shimano rotor configurations in black and available in either 24 28 32 spoke hole options hub features1 end piece all dt swiss 180 240s and 350 rear hubs can be converted into the current axle systems by swapping the press fit end pieces without the need for tools2 ratchets tw