Well, I finally got around to finishing my seat, now I have to figure how to mount it. I bought a front mount. The parts books show a rubber block between the seat and mount, but I like the way it sits without one. the center bracket shown in the pictures is what was on the seat pan when I got it. They look like they will bolt through the fender, but that'd be crazy, IMO. Too much stress in the fender. None of this is original. The frame is '54, the rear fender is RGS and the seat pan unknown. The fender is not yet mounted, as I'm working out details before I start drilling holes. I'm thinking I can bend up some heavy gauge sheet metal and make brackets to bolt to the seat bottom where the present bracket is, then bolt to the frame at the shock mounts and the holes forward of the shock mounts. If anyone has ideas/suggestions for a better way I'd love to hear it.