microSHIFT R9 Rear Derailleur - 9,10 Speed, Medium Cage, 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 Product Specifics Rear Derailleur Mount Type: 10x1 Standard Rear Der/Shifter Compatibility: Shimano Road Cage Length: Medium Drivetrain Speeds: 9 Drivetrain Speeds: 10 Weight: 291 Color: Black Chain Wrap Capacity (teeth): 39 Largest Cog: 34 Today's Stock Status 10+ Available to ship in 2-4 Business Days UPC: Not available EAN: 4710495436081 Manufacturer Part Number: RD-R43M RD0214 167893-Q0-L