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
| Double or Triple | Double |
| Drivetrain Speeds | 12 |
| Derailleur Capacity | 16 |
| Front Derailleur Clamp | Braze-on |
| Front Derailleur Cable Pull | Electronic |
| Front Der/Shifter Compatibility | Shimano Road Di2 |
| Max Ring (teeth) | 54 |
| Front Derailleur Style | Traditional |
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