Shimano GRX RD-RX822-GS Rear Derailleur - 12-Speed, Direct Mount, Medium Cage, Shadow Plus Design, 45t Max Low

With an integrated chain stabilizer, Shimano GRX RD-RX822 12-speed rear derailleurs feature an intergrated chain stablizer that delivers quieter shifting and more secure chain management in rough terrain. The chain tensioner has an ON/OFF switch for easy wheel removal. Shimano RD-RX822-GS rear derailleur with medium cage is compatible with 10-45t, 12-speed Shimano MTB cassettes Interchangeable, replaceable GS/SGS derailleur cage Shadow RD+ design, combined with the adjustable chain stablilizer, prevents chain slap and drops ON/OFF stabilizer switch matches terrain for smooth and reliable shifting on mixed surfaces Compatible with HG 12-Speed Chains Item Specifications Cage Length Medium Chain Wrap Capacity (teeth) 35 Drivetrain Speeds 12 Largest Cog 45 Rear Der/Shifter Compatibility Shimano Road Rear Derailleur Mount Type 10x1 Standard Rear Derailleur Mount Type Shimano Rear Direct Mount Weight 290 Shimano GRX RD-RX822 12-Speed Rear Derailleurs Rear Derailleur UPC: 19