The Shimano GRX RD-RX822 12-speed rear derailleur is engineered for the specific demands of gravel riding, providing enhanced chain security and precise shifting performance. Designed for 1x mechanical groupsets, this derailleur ensures a quieter ride and reliable chain management across mixed surfaces and rough terrain.

Shadow RD+ Stability: Features an integrated, adjustable chain stabilizer that prevents chain slap and drops. The Shadow RD+ design keeps the derailleur tucked away from trail obstacles, while the ON/OFF tensioner switch allows for easy wheel removal and maintenance.

Optimized for 10-45T Cassettes: This GS (medium cage) version is specifically compatible with 10-45T Shimano 12-speed MTB cassettes. This configuration is ideal for maintaining an optimal cadence on challenging climbs and technical gravel sections.

Durable and Adaptable: Built with 13T pulley teeth and an interchangeable GS/SGS cage design, the RD-RX822 offers a total capacity of 35T. It is fully compatible with HG 12-speed chains and recommended for use with CS-M8100-12 or CS-M7100-12 cassettes.

Reliable Mechanical Shifting: Part of the Shimano GRX 12-speed series, this derailleur delivers the smooth, consistent shifting performance required for long-distance gravel racing and backcountry adventures.