Cannondale SuperSlice Rear Derailleur Hanger (Standard Mount) - CK3057U00OS
Cannondale SuperSlice Rear Derailleur Hanger (Standard Mount) - CK3057U00OS, This SuperSlice derailleur hanger is compatible with the following models: Men's SuperSlice Dura Ace Di2 Men's SuperSlice Red eTap Men's SuperSlice Ultegra Di2