NEW Shimano GRX RD-RX817 Rear Derailleur - 11-Speed, Long Cage, Black, Clutch onsale 5 cm: 5'10"–6'2"

5 cm: 5'10"–6'2"

Length: 100 cm

Perforated sides for venting

The special layup and shape of the Arch CB7 deflects up to 10mm radially to soak up speed-robbing impacts

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

NEW Shimano GRX RD-RX817 Rear Derailleur - 11-Speed, Long Cage, Black, Clutch onsale 5 cm: 5'10"–6'2"The 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