Shimano Ultegra FD-R8150 Di2 Front Derailleur - 2x12-Speed, Braze-on, Down Swing, For 50-54t Max, Black/Silver 2022 Ships within United States Buy Online or Click & Collect Share Loading Facebook Like button... Shimano Ultegra FD-R8150 Di2 Front Derailleur - 2x12-Speed, Braze-on, Down Swing, For 50-54t Max, Black/Silver 2022 Ships within United States Buy Online or Click & Collect Share Loading Facebook Like button...