Bike Shifters & Derailleurs

Shimano Ultegra RD-R8000-GS Rear Derailleur -11 Spd Direct Attachment Sleek integrated appearance New low-profile design Race endurance Optimized slant angle Wide compatibility RD-SS covers: 11-25T to 11-30T RD-GS covers: 11-28T to 11-34T Cable...