Open-Box Shimano GRX RD-RX810 11-SPEED pnw there's no need for the

there's no need for the heavy integrated lever which can snag on trail-side obstacles

Replacement line kit for SRAM and Avid hydraulic disc brakes

in some the harshest conditions imaginable

Speeds 1 Compatibility 1/8" singlespeed

Proprietary design ensures smooth shifts and strength

Open-Box Shimano GRX RD-RX810 11-SPEED pnw there's no need for theSHIMANO GRX Rear Derailleur SHIMANO SHADOW RD+ 34T max low sprocket 11 speed With an integrated chain stabilizer mechanism, the SHIMANO GRX derailleur provides a quieter experience and shifting security and precision on mixed terrain. For rides on smooth surfaces, the derailleur features and ON OFF switch for the chain tensioner. The RD RX810 rear derailleur is compatible with road cassettes with a 34T low sprocket max. FEATURES Silent and