Shimano, GRX RD-RX400, Rear Derailleur, Speed: 10, Cage: GS, Black

Description

* GRX 10 speed rear derailleur for double cranks* Adjustable chain stabilizer prevents chain slapping and drops* Gravel-tuned clutch tension can be toggled ON/OFF to match the terrain* Maximum front difference: 16T* Low sprocket: Max. 36T/Min. 30T* Top sprocket: 11T