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Shimano Ultegra Di2 RD-R8150, Rear Derailleur 12s

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Rear deraileur for 12-speed bikes.


The ULTEGRA RD-R8150 12 speed Di2 electronic rear derailleur integrates the system charging port and a wireless connectivity unit all while delivering super fast, precise shifting worth of any podium. A single cage length shifts cassettes from 11-30 to 11-34 bringing new versatility.

  • Compact SHADOW design includes an integrated wireless unit, charger, switch and LED status indicator.
  • Wider range capacity: compatible with 11-30 and 11-34T 12-speed cassettes
  • Super fast shifting
  • Integrated D-FLY Connectivity
  • Maximum low sprocket: 34T

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