NEW Shimano GRX RD-RX817 Rear Derailleur - 11-Speed, Long Cage, Black, Clutch onsale Bike-to-bike and bike-to-vehicle contact prevented

Bike-to-bike and bike-to-vehicle contact prevented by no-sway cages

Seat Tube Length - Center to Top 540 560 580 600 620 J

The 1x specific X-Horizon derailleur design provides excellent chain control and shifts well regardless of cassette size

5 cm: 5'10"–6'2"

NEW Shimano GRX RD-RX817 Rear Derailleur - 11-Speed, Long Cage, Black, Clutch onsale Bike-to-bike and bike-to-vehicle contact preventedThe Shimano GRX 11 speed Di2 rear derailleur integrates electronic shifting with silent and uninterrupted rear operation on rough terrain. An adjustable Shimano Shadow RD+ clutch prevents chain slapping and drops. Operates with Shimano Di2 for digital electronic shifting Gravel tuned clutch tension provides smooth and reliable mixed surface shifting Rear Derailleur Mount Type: Shimano Rear Direct Mount Rear Der Shifter Compatibility: Shimano Road Di2