Shimano Ultegra FD-R8150 Di2 Front Derailleur - 2x12-Speed Braze-on Down Swing For 50-54t Max BLK/Silver

Combining Shimano's Di2 platform and the road incarnation of Hyperglide+ the Ultegra FD-R8150 front derailleur shifts between chainrings with the fast and seamless action.

Small sleek and lightweight front derailleur

Frontal area is smaller than previous designs to reduce aerodynamic drag

Top gear teeth capacity: 50-54t