Shimano Ultegra DI2 FD-R8150 Front Derailleur

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

-Fastest front shifter ever, 45% faster than FD-R9150

-Smaller, sleeker, lighter

- Frontal area reduced by 33%

-Weight reduced to 116g

-Large chainring tooth capacity: 50-54T