105 FD-R7150 Di2 Front Derailleur - 2x, For 2x12-Speed, Braze-On, Down-Swing, Black

The Shimano 105 FD-R7150 Di2 front derailleur provides precise, coordinated front shifting. Features full- and semi-synchronized shifting functions that can be selected using the E-TUBE app. Digitally accurate electronic shifts and coordinated communication between shifter and derailleur Shift from the big to small chainrings, or vice versa, whenever you like while minimizing the risk of a dropped chain Powerful, accurate, smooth front shifting with the programmed chain guide control by automatic trim Shimano SYNCHRONIZED SHIFT for manual, full- and semi-synchronized shifting program