Shimano GRX RD-RX822-GS Rear Derailleur - 12-Speed Direct Mount Medium Cage Shadow Plus Design 45t Max Low Kwick Journey Sport KS }Campagnolo Chorus Cassette - 12 CheckoutSpec= SantaCruz Blur/Wilder (2022+)

Shimano GRX RD RX822 GS Rear Derailleur 12 Speed Direct Mount Medium Cage Shadow Plus Design 45t Max Low Kwick Journey Sport KS }Campagnolo Chorus Cassette 12 CheckoutSpec= SantaCruz Blur Wilder (2022+) }Campagnolo Chorus Cassette 12 Speed 11 29t Silver and side pull caliper brakes Largest Cog 45 Rear Der Shifter Compatibility Shimano Road Rear Derailleur Mount Type 10x1 Standard Drivetrain Speeds 12 Weight 290 Chain Wrap Capacity (teeth) 35 Cage Length Medium Max Cog Size 45T 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