Shimano GRX RD-RX817 Rear Derailleur - 11-Speed, Long Cage, Black, With Clutch, Di2, For 1x

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 Product Specifics Rear Derailleur Mount Type: Shimano Rear Direct Mount Rear Der/Shifter Compatibility: Shimano Road Di2 Cage Length: Long Drivetrain Speeds: 11 Weight: 318 Color: Black Chain Wrap Capacity (teeth): 31 Largest Cog: 42 Today's Stock Status 10+ Available to ship in 2-4 Business Days UPC: 192790443171 EAN: Not available Manufacturer Part Number: IRDRX817 RD0607 156123-Q0-L