Details
R-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.
- Long cage for triple 28T setup
- Steel pulley cage for extra durability
- Not compatible with Shimano Tiagra 4700 road system