NEW Shimano Dura-Ace RD-R9250F Di2 Rear Derailleur - 12-Speed, Medium Cage, Includes TL-EW300, Black price_changed_on_2024-01-31 Headset Threadless 1-1/8”

Headset Threadless 1-1/8”

Steel inner ring

wider rim shapes have been optimized for crosswind stability at a variety of yaw angles

Seat: BMX style padded

NEW Shimano Dura-Ace RD-R9250F Di2 Rear Derailleur - 12-Speed, Medium Cage, Includes TL-EW300, Black price_changed_on_2024-01-31 Headset Threadless 1-1/8”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