Bought a parkpre and have been fixing it up but I can't find the seatpost size and clamp have been a pain the ass. He had a terrible seatpost, seat, and clamp when I bought it. I think I found the right seatpost all though it does slip in there with little resistance. 26.4mm seatpost diameter. The clamp, I'm not sure what to get. Maybe I dont have it right. Maybe I don't have the year right but I think it's a 1995 from my research. Links are helpful. Thanks internet!