Shimano GRX RD-RX822 Rear Derailleur – 12-Speed GRX Gravel Series

Product Description:

The Shimano GRX RD-RX822 Rear Derailleur is part of Shimano’s newest 12-speed GRX gravel groupset, engineered specifically for rough terrain, off-road riding, and mixed-surface adventures. With an advanced Shadow RD+ chain stabilization system and compatibility with wide-range 12-speed cassettes, the RD-RX822 delivers secure, precise, and reliable shifting even on rugged gravel routes. Whether you're building a new gravel bike or upgrading from an older GRX model, the RX822 gives you the latest generation performance and durability.

Features:

• 12-speed GRX derailleur designed for gravel and mixed-terrain riding

• Shadow RD+ clutch technology reduces chain slap and keeps the chain stable on rough terrain

• Compatible with wide-range 1×12 cassettes (10-45T or 10-51T depending on version)

• Optimized pulley geometry for smooth shifting under heavy load

• Durable design ideal for endurance gravel, bikepacking, cyclocross, and adventure riding

• Lightweight, low-profile design to reduce impact risk

Specifications:

• Model: Shimano GRX RD-RX822

• Speed: 12-speed

• Chain Stabilizer: Shadow RD+ with ON/OFF lever

• Max Sprocket: 45T (Wide-Range) or 51T (Explorer setup – depending on your stock)

• Mount Type: Standard derailleur hanger

• Drivetrain: Compatible with Shimano 12-speed GRX and certain MTB cassettes (based on setup)

(Please update the max sprocket according to the exact version you are selling.)

Package Includes:

• Shimano RD-RX822 12-Speed Rear Derailleur

• OEM Packaging – No Retail Box

Why Choose GRX RD-RX822:

This new-generation GRX derailleur brings Shimano MTB-level chain control and reliability into the gravel world. Perfect for riders who need stable shifting, a quiet drivetrain, and maximum durability on unpredictable terrain.