Shimano GRX RD-RX820 12-Speed Rear Derailleur Category_Hubs 23-622 700 x 23C

23-622 700 x 23C

Flip it over and run it the other for 10mm drop

The design and edgy graphics perfectly compliment current gen bicycles

The industry standard in performance training tyres is back with a refreshed design

Shimano GRX RD-RX820 12-Speed Rear Derailleur Category_Hubs 23-622 700 x 23CSHIMANO GRX Rear Derailleur SHIMANO SHADOW RD+ 12 speed RD RX820 NEW Enhanced chain security and quieter, more stable shifting for gravel riding The RD RX820 is compatible with 11 34T and 11 36T 12 speed cassettes, providing a wide gear range so you can spin a comfortable cadence no matter the terrain type. The SHIMANO GRX 12 speed rear derailleur also features an integrated chain stabilizer that delivers quieter shifting and more secure chain