More compact and faster than ever, the Ultegra R8150 derailleur performs digitally precise chainring shifts in any condition

Thanks to the combination of the new Shimano Di2 platform and the road incarnation of HYPERGLIDE+, the ULTEGRA R8150 derailleur shifts between chainrings with the fastest and smoothest action on the market.

Features

• Model: FD-R8150
• series: ULTEGRA R8100 Series
• Actual weight: 110 g
• Chainline (mm): 44.5
• Seat stay angle (degrees): 61 - 66
• Compatible chain: 12-speed HG
• Maximum chainring teeth: 50-54T
• Total capacity: 16T
• 2x12V

Technologies

E-TUBE Technology
E-TUBE is Shimano's "service" that uses websites or apps to maximize the joy of cycling by connecting riders, bikes, and Shimano.

HG
The dedicated HYPERGLIDE+ chain offers better retention, more efficient shifting, and smoother transmission on rough terrain. This different design reduces the vibrations normally caused by the inner and outer links passing over the chainring and provides better chain engagement, greater retention, and a smoother pedal stroke.