Shimano Ultegra Di2 RD-R8150 Rear Derailleur (Black) (12 Speed) (Electronic)

Shimano Ultegra Di2 RD-R8150 Rear Derailleur (Black) (12 Speed)
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Price: $409.99
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The Shimano Ultegra Di2 RD-R8150 Rear Derailleur brings a whole new level of ease to electronic shifting. Compared to previous Di2 derailleurs, shifts are 58% faster and more precise. Available in only a single cage length, it is now compatible with wider range cassettes, from 28 to 34 tooth cogs max. With an integrated charging port and LED status indicator light, keeping your shifting powered up and connected has never been simpler.

Note: This product is a rear derailleur only. Complete bicycle pictures are included for illustrative purposes.


  • Fastest ever rear shifting, 58% faster than RD-R9150
  • Compact design includes an integrated wireless unit, charger, switch
  • LED status indicator: Battery indicator, Pairing, Adjust mode etc.
  • Wider range capacity: max. sprocket: 34T

Speed: 12 Speed
Shifter Compatibility: Shimano Di2
Shift Mechanism: Electronic (Wireless/Wired)
Max. Tooth: 34T
Min. Tooth: 11T
Chain Wrap Capacity: 39T
Cage Material: Carbon/Aluminum
Chain Retention: Shadow
Color: Black
Weight: 262g

Check out our full selection of Shimano Ultegra 12 Speed Di2 Parts.

This product was added to our catalog on August 24, 2022