Shimano Dura Ace FD-R9250 12-Speed Braze On Front Derailleur

The Shimano Dura-Ace FD-R9250 is a smaller, lighter front derailleur that offers ultra-fast shifting. It has a reduced frontal area to minimize aerodynamic drag, accommodates up to 55 teeth, and has a chainstay angle of 61-66 degrees. It comes with an SD300 port.