I just bought a Peugeot competition PKN10 1980-83 yesterday and discovered it had a simplex seat pillar. I don't know much about simplex and their crappy derailleurs but was surprised when i saw this. On all of the catalogs it says the bike came with SR Leprade seatpost for every year. Is this worth some bucks? I saw some on ebay but mine is not in the best shape and i figure nobody wants them for top dollars if it's not cleaned up. I could upload a pic tomorrow. Just wanted to know more about this thing. Sheldon brown claims they are neat and i highly agree! Thanks for the input!