Description
Avid SRAM 0mm IS Disc Brake Adaptor Fits 160mm Front and 140mm Rear Rotors ModelNumber=21380 FSA Orbit IS headsets FSA Orbit IS headsets Rear Derailleur Mount Type 10x1 Standard Rear Der Shifter Compatibility SRAM Exact Actuation Cage Length Medium Drivetrain Speeds 11 Weight 152 Color Black keyword search RD4621 Chain Wrap Capacity (teeth) 37 Largest Cog 32