NEW Shimano GRX RD-RX817 Rear Derailleur - 11-Speed, Long Cage, Black, Clutch onsale Proprietary stretch materials grip your

Proprietary stretch materials grip your phone on all 4 corners

Left shifter has a trim position when front derailleur is in the large chainring

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

The Tange-Seiki Passage 1" threaded headset is constructed of steel and features 5/32" ball bearings

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

NEW Shimano GRX RD-RX817 Rear Derailleur - 11-Speed, Long Cage, Black, Clutch onsale Proprietary stretch materials grip yourThe 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