Shimano Dura-Ace RD-R9250 Di2 Rear Derailleur - 12-Speed Medium Cage Includes TL-EW300 BLK CheckoutTitle=Zipp CeramicSpeed Bearing Kit - 61803 Modified Stem Angle (deg) -6 Length

Stem Angle (deg) -6 Length 110 Bar Clamp Diameter (mm) 31

Maximum seating comfort thanks to the thick padding even on very long rides

5" Rim Material Alloy Tire Type Tubeless Ready Rim Center Offset (mm) 7

Viscosity-stable across highest range of operating temperatures

Shimano Dura-Ace RD-R9250 Di2 Rear Derailleur - 12-Speed Medium Cage Includes TL-EW300 BLK CheckoutTitle=Zipp CeramicSpeed Bearing Kit - 61803 Modified Stem Angle (deg) -6 LengthShimano Dura Ace RD R9250 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 shiftingCompact design includes an integrated wireless unit