Shimano ST-RX815 GRX 11Spd R/H Hydro Shifter salerack50 Reduces metal-to-metal contact to reduce

Reduces metal-to-metal contact to reduce drivetrain wear

ASTM F2032-15

148x12 or 197x12 rear hubs

A narrower inner rim width optimizes rolling resistance and sharpens tire edges for improved grip

Drop : 8°

Shimano ST-RX815 GRX 11Spd R/H Hydro Shifter salerack50 Reduces metal-to-metal contact to reduceWith 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 RX815 DI2 version offers the digital precision of SHIMANO electronic shifting and synchronized shifting. and is compatible with road cassettes with a 34T low sprocket max. Silent and