Shimano GRX RD-RX810 11-Speed Rear Derailleur Technology_Spherical Dirt DrainingSpeedy RibDirection Shadows

Dirt DrainingSpeedy RibDirection Shadows

42mm and 50mm extensions

There is no doubt about it

With an incredible variety of rim profiles in the market

Shimano GRX RD-RX810 11-Speed Rear Derailleur Technology_Spherical Dirt DrainingSpeedy RibDirection ShadowsSHIMANO GRX Rear Derailleur 11 speed (34T max low sprocket) RD RX810 SHIMANO 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