Shimano Ultegra FD-R8150 Di2 12-Speed

The new, improved ULTEGRA FD-R8150 2x12 Di2 front derailleur tips the scales at 110 grams, and it shifts exceptionally fast. Its frontal area has been reduced, decreasing its aerodynamic drag significantly.* Super fast shifting* Better aerodynamics, thanks to its frontal area reduced by 33%* Weight cut to 110 g* Top gear teeth capacity: 50-55T