Time in the saddle: Great for extended rides

366g (11-36)

fast conditions or a front tyre for short-track events and less technical trails

laser cut steel the Unior Chain Wear Indicator has been built for the long haul

Shimano GRX RD-RX822 Shadow+ 12 Speed Rear Derailleur - Rear Derailleur - 12 Speed - Black - Mid Cage - 1x12 - 45T Max PLP|Model Year Time in the saddle: GreatWith its integrated chain stabilizer and medium cage, the SHIMANO GRX rear derailleur delivers quieter shifting, better ground clearance and more secure chain management in rough terrain. The RD RX822 SGS is compatible with 10 51T, 12 speed SHIMANO MTB cassettes, and the chain tensioner has an ON OFF switch for easy wheel removal.