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
• For 1x drivetrains

• Rear Derailleur Mount Type:Shimano Rear Direct Mount
• Drivetrain Speeds:11
• Cage Length:Long
• Chain Wrap Capacity (teeth):31 teeth
• Largest Cog:42
• Color:Black
• Weight:318 g
• Rear Der/Shifter Compatibility:Shimano Road Di2