The Shimano GRX 11-speed rear derailleur provides silent and uninterrupted rear shifting on rough terrain. An adjustable Shimano Shadow RD+ clutch prevents chain slapping and drops.

• Compatible with Shimano road Dual Control Levers
• Gravel-tuned clutch tension provides smooth and reliable mixed surface shifting
• Toggle clutch on/off to match the terrain
• For 1x and 2x drivetrains

• Rear Derailleur Mount Type: Shimano Rear Direct Mount , 10x1 Standard
• Drivetrain Speeds: 11
• Cage Length: Long
• Chain Wrap Capacity (teeth): 40 teeth
• Largest Cog: 34
• Color: Black
• Weight: 255 g
• Rear Der/Shifter Compatibility: Shimano Road