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.

FEATURES:

• 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

SPECS:

• Largest Cog: 34t
• Rear Derailleur Mount Type: Shimano Rear Direct Mount , 10x1 Standard
• Chain Wrap Capacity (teeth): 37t
• Rear Der/Shifter Compatibility: Shimano Road Di2
• Drivetrain Speeds: 12