’58 Harley Davidson | hinge seat pan February 25, 2015 by Matt with No Comment Custom SeatFabricationWelding I started with a seat hinge. I mounted that to the frame first. Then I attached the hardware that was going to attach the seat to the seat hinge. I then used a combination of solid round stock to make the seat frame. I weld and shape the round stock directly to the motorcyles frame. I do this in order to get the best fit possible. Since it is a hinge seat the rear of the seat never gets latched. To ensure the seat doesn’t move around I made fingers on each side that grab the motorcycles frame. Time to skin it! I made the rear lip of the pan in the slip roll. I then place the pan on the seat frame, and start roughing in the pan, working toward the final shape. This is the final result!! Sweet hinge action!! Building on the bike leaves you with a sweet contoured, fitted custom seat pan. Well, every bike needs a seat! This is how I make mine. I made a hinge seat that way I’ll have easy access to the oil tank at all times.