Shimano Dura-Ace RD-R9250F Di2 Rear Derailleur - 12-Speed
What Makes the Shimano Dura-Ace RD-R9250F Di2 Rear Derailleur the Best Available?
The RD-R9250F is Shimano's current flagship Di2 rear derailleur, the cornerstone of the Dura-Ace R9250 12-speed electronic groupset. A single cage length covers cassettes from 11-28 to 11-34t, eliminating the need to spec a derailleur by cassette size and giving builders flexibility across different course requirements with one hardware choice. Di2 electronic actuation delivers instant, repeatable shifts under any load condition, with shift response that mechanical cable systems physically cannot match at race pace or in adverse conditions.
The RD-R9250F integrates the system charging port and a built-in wireless connectivity unit that handles Di2 system communication and firmware updates via the Shimano E-TUBE app, removing the need for a separate junction box in most builds. Shift speed is measurably faster than the R9150 generation, and the internal motor design allows a slimmer, more aerodynamic derailleur profile. It pairs with the FD-R9250 front derailleur, ST-R9270 Di2 STI levers, and the CS-R9200 12-speed cassette as a complete race-level electronic drivetrain. For riders who want the absolute best shifting Shimano makes, the RD-R9250F is the answer.
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Shimano Dura-Ace RD-R9250F Di2 Rear Derailleur - 12-Speed
Shimano Dura-Ace RD-R9250F Di2 Rear Derailleur - 12-Speed
What Makes the Shimano Dura-Ace RD-R9250F Di2 Rear Derailleur the Best Available?
The RD-R9250F is Shimano's current flagship Di2 rear derailleur, the cornerstone of the Dura-Ace R9250 12-speed electronic groupset. A single cage length covers cassettes from 11-28 to 11-34t, eliminating the need to spec a derailleur by cassette size and giving builders flexibility across different course requirements with one hardware choice. Di2 electronic actuation delivers instant, repeatable shifts under any load condition, with shift response that mechanical cable systems physically cannot match at race pace or in adverse conditions.
The RD-R9250F integrates the system charging port and a built-in wireless connectivity unit that handles Di2 system communication and firmware updates via the Shimano E-TUBE app, removing the need for a separate junction box in most builds. Shift speed is measurably faster than the R9150 generation, and the internal motor design allows a slimmer, more aerodynamic derailleur profile. It pairs with the FD-R9250 front derailleur, ST-R9270 Di2 STI levers, and the CS-R9200 12-speed cassette as a complete race-level electronic drivetrain. For riders who want the absolute best shifting Shimano makes, the RD-R9250F is the answer.
Original: $837.99
-70%$837.99
$251.40Product Information
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Description
What Makes the Shimano Dura-Ace RD-R9250F Di2 Rear Derailleur the Best Available?
The RD-R9250F is Shimano's current flagship Di2 rear derailleur, the cornerstone of the Dura-Ace R9250 12-speed electronic groupset. A single cage length covers cassettes from 11-28 to 11-34t, eliminating the need to spec a derailleur by cassette size and giving builders flexibility across different course requirements with one hardware choice. Di2 electronic actuation delivers instant, repeatable shifts under any load condition, with shift response that mechanical cable systems physically cannot match at race pace or in adverse conditions.
The RD-R9250F integrates the system charging port and a built-in wireless connectivity unit that handles Di2 system communication and firmware updates via the Shimano E-TUBE app, removing the need for a separate junction box in most builds. Shift speed is measurably faster than the R9150 generation, and the internal motor design allows a slimmer, more aerodynamic derailleur profile. It pairs with the FD-R9250 front derailleur, ST-R9270 Di2 STI levers, and the CS-R9200 12-speed cassette as a complete race-level electronic drivetrain. For riders who want the absolute best shifting Shimano makes, the RD-R9250F is the answer.
