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

- 61-66 degree chainstay angle

- Includes 1 SD300 port

- Double or Triple: Double

- Derailleur Capacity: 16

- Front Der/Shifter Compatibility: Shimano Road Di2

- Max Ring (teeth): 54

- Front Derailleur Style: Traditional

- Front Derailleur Cable Pull: Electronic

- Front Derailleur Clamp: Braze-on

- Drivetrain Speeds: 12