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 |
10×1 Standard |
| Drivetrain Speeds |
12 |
| Chain Wrap Capacity (teeth) |
37 |
| Cage Length |
Medium |
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