- Reinforced joints for improved lateral stiffness
- Rear Der/Shifter Compatibility: Shimano Road (Not compatible with Shimano Tiagra 4700 road system)
- Setup:
- Short cage for double 28T
- Long cage for triple 28T
- Steel cage with steel outer link
- Cage Length: Short or Long
- Max Cog: 25t to 28t
- Chain Wrap Capacity: 33t (Short), 39t (Long)
- Rear Derailleur Mount Type: Standard
- Drivetrain Speeds: 8, 9
- Published Weight: 225g (Short), 230g (Long)
R-series rear derailleurs are designed to work with 8 and 9-speed Shimano-compatible road shifters. These R8 rear derailleurs have composite and steel parts for greater reliability.