microSHIFT R9 Rear Derailleur - 9-Speed Short Cage Shimano Road Compatible Black. R-series rear derailleurs are designed to work with 7 8 9 and 10-speed Shimano-compatible road shifters. These R9 rear derailleurs combine the benefits of R10 and R8 rear derailleurs: compatibility friendly weight saving and robust.
  • Weight saving aluminum bracket body and outer link
  • Steel pulley cage for extra chain-rub durability
  • Compatible with Shimano 7 8 9 and 10-speed road systems
  • Not compatible with Shimano Tiagra 4700 road system
  • Largest Cog 28
    Rear Der/Shifter Compatibility Shimano Road
    Rear Derailleur Mount Type 10x1 Standard
    Drivetrain Speeds 9
    Chain Wrap Capacity (teeth) 33
    Cage Length Short
    Color Black