Shimano Ultegra FD-R8150 Di2 Front Derailleur - 2x12-Speed, Braze-on, Down Swing, For 50-54t Max, Black/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.Product Details: Frontal area is smaller than previous designs to reduce aerodynamic drag Small, sleek and lightweight front derailleur Top gear teeth capacity: 50-54t Specifications: Derailleur Capacity: 16 Double or Triple: Double Drivetrain Speeds: 12 Front Der/Shifter Compatibility: Shimano Road Di2 Front Derailleur Cable Pull: Electronic Front Derailleur Clamp: Braze-on Front Derailleur Style: Traditional Max Ring (teeth): 54 UPC: 192790875309 MPN: IFDR8150F