Shimano, GRX RD-RX817, Rear Derailleur, Speed: 11, Cage: GS, Grey
| Availability: | In stock (1) |
- GRX Di2 11 speed rear derailleur for 1X cranks
- Adjustable chain stabilizer prevents chain slapping and drops
- Gravel-tuned clutch tension can be toggled ON/OFF to match the terrain
- Low sprocket: Max. 42T/Min. 40T
- Top sprocket: 11T