Shimano Dura-Ace Di2 RD-R9250 12 Speed Rear Derailleur

The fastest shifting ever across the widest range of gears offered by the Shimano Dura-Ace groupset , the RD-R9250 rear derailleur will have you winning races or beating your personal bests.The Dura-Ace Di2 RD-R9250 rear derailleur incorporates the system’s charging port and a wireless connectivity unit, while delivering ultra-fast and precise shifting. A single cage length compatible with large 28-34t sprockets brings new versatility to the world’s best road component group.Main features: Fastest rear shifting: 58% faster than RD-R9150 rear derailleur Compact design includes integrated wireless unit, charger and switch Battery status indicator Larger capacity: Maximum toothing of large sprocket: 34T Rear derailleur cage made of carbon reinforced composite materialDetails : Compatibility: 12 speeds Max tooth of the large pinion: 34 teeth Weight: 215g Reference: IRDR9250D