Shimano GRX RD-RX400 Rear Derailleur - 10-Speed, Long Cage, Black, With Clutch

GRX RD-RX400 Rear Derailleur A Shadow RD+ chain stabilizer prevents chain slapping and drops The gravel-tuned clutch tension helps to provide smooth and reliable mixed surface shifting Stabilizer can be turned on/off to match terrain Compatible only with 10-speed ST-RX400, ST-4700, ST4720, ST-4725, ST-RS405 and SL-4700 shift levers Color: Black Largest Cog: 36 Rear Derailleur Mount Type: Shimano Rear Direct Mount , 10x1 Standard Chain Wrap Capacity (teeth): 41 Cage Length: Long Rear Der/Shifter Compatibility: Shimano Road Drivetrain Speeds: 10 Weight: 303