GRX RD-RX815 Di2 Rear Derailleur
- Operates with Shimano Di2 for digital electronic shifting
- Gravel-tuned clutch tension provides smooth and reliable mixed surface shifting
- For 1x drivetrains
- Color: Black
- Largest Cog: 42
- Rear Derailleur Mount Type: Shimano Rear Direct Mount
- Chain Wrap Capacity (teeth): 31
- Cage Length: Long
- Rear Der/Shifter Compatibility: Shimano Road Di2
- Drivetrain Speeds: 11
- Weight: 318
