Shimano Front Derailleur, FD-RX815, GRX, FOR 11-SPEED, Di2

The Shimano FD-RX815 Di2 Front Derailleur achieves the crisp, quick and reliable shifting you've been waiting for, and you get 2.5+mm of extra tire clearance so you can those wider/knobbier gravel tires for extra comfort on the rough terrain. The auto-trim feature ensures chain rub is a thing of the past as you cycle through shifts, and the semi and full SynchroShift means the shifting is butter smooth, every. single. time.