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Shimano FD-R8150 Ultegra Di2 2x12-Speed Braze-On Front Derailleur


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Light, Compact, & Wicked Fast

More compact and faster than ever, the Shimano Ultegra FD-R8150 Front Derailleur performs digitally precise front shifts under any circumstances.

Ultegra R8100's new Di2 platform showcases Shimano's most advanced drivetrain technology and shifting performance to date. Introduced alongside Dura-Ace R9200, the new Di2 platform delivers faster front and rear shifting than ever before so riders can focus on the terrain ahead with total confidence in their shifting performance.

Combining Shimano's new Di2 platform and the road incarnation of HYPERGLIDE+, the Ultegra R8150 front derailleur shifts between chainrings with the fastest, most seamless action on the market.

HYPERGLIDE+ allows for better chain engagement, stronger retention, and smoother pedaling provide greater power and confidence over rapidly changing terrain.


  • Fastest ever front shifting, 45% faster than FD-R9150
  • Smaller, sleeker, lighter
  • Frontal area reduced by 33%
  • Weight cut to 116 g
  • Top gear teeth capacity: 50-54T