The best bicycle I ever sold was a 1990 Bob Jackson, but it was a little too small for me, and I don't really regret selling it. If I could have one back, it would be the Raleigh Super Course that was stolen from me when I locked it to a bicycle I correctly presumed was stolen from my Uncle's bicycle shop, and came back 5 minutes later to find both the bikes gone. The worst pain was knowing who took it, but not having proof. In retrospect, I probably should have fibbed to the cops and said I saw the guy who I know took it riding it down the street when I came back. The price of being honest.