- Forged and CNC machined aluminum construction is lightweight and rugged
- Cage is crafted with steel for enhanced chain-rub durability
- For use with Shimano 9-speed road systems
- Not compatible with Shimano Tiagra 4700 road system
- Chain Wrap Capacity (teeth): 33
microSHIFT R9 rear derailleurs are designed to work with 9-speed -compatible road shifters. With a competitive weight and an aluminum bracket body and outer link, R9 marries form and function beautifully. Forged and CNC machined aluminum construction is lightweight and rugged. Cage is crafted with steel for enhanced chain-rub durability. For use with 9-speed road systems. Not compatible with Tiagra 4700 road system. Item Specifications: Largest Cog: 28, Rear Der/Shifter Compatibility: Road, Rear Derailleur Mount Type: 10x1 Standard, Drivetrain Speeds: 9, Chain Wrap Capacity (teeth): 33, Cage Length: Short, Color: Black,