microSHIFT R8 Rear Derailleur - 8,9 Speed, Short Cage, Black Anti-Seize & Assembly Compound Manufacturer Part Number: Y1F813100

Manufacturer Part Number: Y1F813100

Manufacturer Part Number: EHBRS770C

MA3058 TR6333 592311

123031-Q0-L

Manufacturer Part Number: 19245-02

microSHIFT R8 Rear Derailleur - 8,9 Speed, Short Cage, Black Anti-Seize & Assembly Compound Manufacturer Part Number: Y1F813100R series rear derailleurs are designed to work with 7, 8 ,9, and 10 speed Shimano compatible road shifters. These R8 rear derailleurs have composite and steel parts that weigh more but have the same durability and performance as R9 and R10. Steel pulley cage for extra durability Not compatible with Shimano Tiagra 4700 road system Product Specifics Rear Derailleur Mount Type: 10x1 Standard Rear Der Shifter Compatibility: Shimano Road Cage Length: Short