The ‘F’ front end extends the system by 19.5 inches, as well as adds a lower bar to mount accessories to. There is an 8 inch space between the bottom and top rail of the ‘F’ piece, which allows for a variety of fog lights and lightbars to be mounted. The top rail of the ‘F’ piece falls in line with the rest of the cross bars, so laying platforms, cargo or paneling can be done seamlessly.