Shimano GRX RD-RX810 Rear Derailleur 11 Speed BlackThe Shimano GRX RD-RX810 Rear Derailleur has an integrated chain stabilizer mechanism it provides a quieter experience, 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. Compatible with current Shimano 2x11 Dual Control Levers. Compatible with cassettes with a 34T low sprocket max, and 40T capacity.192790448879
