Shimano GRX RD-RX400 Rear Derailleur - 10-Speed, Long Cage, Black, With Clutch Cable/Housing & Brake Tools ISO-Mountain safety certification

ISO-Mountain safety certification

153888-Q0-L

125899-Q0-L

- Includes Box One stem lock

Manufacturer Part Number: D10064T

Shimano GRX RD-RX400 Rear Derailleur - 10-Speed, Long Cage, Black, With Clutch Cable/Housing & Brake Tools ISO-Mountain safety certificationThe Shimano GRX RD RX400 10 speed rear derailleur keeps shifting silent and uninterrupted when riding on rough terrain. 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 Product Specifics Rear