GRX RD-RX400 Rear Derailleur - 10-Speed, Long Cage, Black, With Clutch Seat pack LockTight Wings

LockTight Wings

2pc cover with aramid sides

Factory tuned compression (in open position) provides the highest level of XC performance

Can be set up with wide or narrow stance

Dropout Savers eliminate the high cost of replacing frames welded derailleur dropout

GRX RD-RX400 Rear Derailleur - 10-Speed, Long Cage, Black, With Clutch Seat pack LockTight WingsGRX 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