Not to hijack this thread and turn it into a discussion on tire preferences, but what the hell! JBailey is right that almost any tire mad today is better than the tires these things had 30+ years ago. I disagree that better tires are a waste of money. The higher end tires mount up much easier, grip better, usually runout better, and generally last longer. The only tire I would not reccomend to anybody are the vintage series through Duro. They are scary! You almost don't need tools to install the front, the rear is almost as flimsy, and they have absolutely no grip.
My personal tire preference is Kenda Challengers. They are pretty cheap, but are heavy duty on the load side and grip very well and mount up easily. My dad runs Avons. They are pretty close on the grip side, but he gets much better life out of the rear than I do (riding style may factor into that though).
