Shimano GRX RD-RX812 Rear Derailleur - 11-Speed, Long Cage, Black, With Clutch, For 1x, 42t Low Sprocket Max Black EA Rear Derailleur

IRDRX812 Shimano Shimano GRX RD-RX812 Rear Derailleur - 11-Speed, Long Cage, Black, With Clutch, For 1x, 42t Low Sprocket Max Rear Derailleur EA Black Largest Cog 42 Color Black Rear Der/Shifter Compatibility Shimano Road Rear Derailleur Mount Type Shimano Rear Direct Mount Rear Derailleur Mount Type 10x1 Standard Drivetrain Speeds 11 Weight 267 Chain Wrap Capacity (teeth) 31 Cage Length Long