Shimano, Dura Ace Di2 RD-R9250, Rear Derailleur, Speed: 12, Cage: GS, Black

The Shimano Dura-Ace RD-R9250 rear derailleur integrates the system charging port and a wireless connectivity unit all while delivering super fast, precise shifting worthy of any podium. A single cage length shifts cassettes from 11-28 to 11-34, offering exceptional versatility.

FEATURES:

- Ultra-fast rear Di2 shifting
- Compact design includes an integrated wireless unit, charger, switch
- Wider range capacity
- Max. low sprocket: 34t
- CFRP rear derailleur plate
- LED status indicator

SPECS:

- Largest Cog: 34t
- Rear Derailleur Mount Type: Shimano Rear Direct Mount , 10x1 Standard
- Chain Wrap Capacity (teeth): 37t
- Rear Der/Shifter Compatibility: Shimano Road Di2
- Drivetrain Speeds: 12