Shimano GRX RD-RX825 Di2 Rear Derailleur - 12-Speed, Long Cage, With Clutch, For 2x, Black Black EA Rear Derailleur

IRDRX825A Shimano Shimano GRX RD-RX825 Di2 Rear Derailleur - 12-Speed, Long Cage, With Clutch, For 2x, Black Rear Derailleur EA Black Largest Cog 36 Rear Der/Shifter Compatibility Shimano Road Di2 Rear Derailleur Mount Type 10x1 Standard Rear Derailleur Mount Type Shimano Rear Direct Mount Drivetrain Speeds 12 Chain Wrap Capacity (teeth) 40 Cage Length Long Color Black