Shimano Dura-Ace RD-R9250F Di2 Rear Derailleur - 12-Speed Medium Cage Includes TL-EW300 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.
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
Battery indicator pairing adjust mode etc.
| Largest Cog | 34 |
| Color | Black |
| Rear Der/Shifter Compatibility | Shimano Road Di2 |
| Rear Derailleur Mount Type | Shimano Rear Direct Mount |
| Rear Derailleur Mount Type | 10x1 Standard |
| Drivetrain Speeds | 12 |
| Chain Wrap Capacity (teeth) | 37 |
| Cage Length | Medium |
