Shimano GRX RD-RX822-GS Rear Derailleur-12-Speed Direct Mount Shadow Plus Design Cage Length:Medium we recommend using only the

we recommend using only the two main parts without the middle insert

The Sport is basically a modified Dave-O shape

and the updated foam grip adds comfort while the new sticky-rubber

The assisted braking function which supports the braking force can be activated or disabled by an intelligent mechanism

Shimano GRX RD-RX822-GS Rear Derailleur-12-Speed Direct Mount Shadow Plus Design Cage Length:Medium we recommend using only theWith 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. Largest Cog: 45 Rear Der Shifter Compatibility: Shimano Road Rear Derailleur Mount Type: Shimano Rear Direct Mount Rear Derailleur Mount Type: 10x1 Standard Drivetrain Speeds: 12