Shimano GRX RD-RX822 12 Speed Rear Derailleur, GS - Max 45T

Shimano GRX RD-RX822 12 Speed Rear Derailleur

Features:

• Silent and secure rear shifting on rough terrain

• Adjustable chain stabilizer prevents chain slap and drops

• Smooth and reliable shifting on mixed surfaces

• ON/OFF stabilizer switch matches terrain

• For use with single chainset

• Compatible with 12-speed Hyperglide+ chains

Enhanced chain security and quieter shifting for gravel riding.

With its integrated chain stabilizer, the Shimano GRX rear derailleur delivers quieter shifting, better ground clearance and more secure chain management in rough terrain.

The RD-RX822 is available in 2 versions - GS (Medium cage) or SGS (Long cage), use GS for 10-45T cassettes and SGS for 10-51T cassettes, both options are designed to be used with Shimano 12-speed MTB cassettes, and the chain tensioner has an ON/OFF switch for easy wheel removal.

Technical specifications:

• Speeds: 12s

• Shifting: Mechanical

• Max tooth: GS - 45T / SGS 51T

• Total capacity: GS - 35T / SGS - 41T

• Weight: GS - 290g / SGS - 288g