Open-Box Shimano GRX RD-RX810 11-SPEED shimano A flat sitting area with

A flat sitting area with a central relief promotes sitting on your bones

the Mamba S combines a flat-pedal style platform and a tough

The Type-3 ROLLER BEARING CLUTCH™ provides quiet

Stack height: 7

Open-Box Shimano GRX RD-RX810 11-SPEED shimano A flat sitting area withSHIMANO 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