The recent thread on "local animosity" has gotten me curious about so-called "tri bikes". I was going to post up and ask about them, but then I did some googling and came across the following page:
http://www.bikesportmichigan.com/bikes/difference.shtml
This page seems to do a pretty decent job of explaining what tri bikes are all about. I just thought I'd pass on the link.
So no question -- just a good link for anyone else like me who wants to learn a bit about other styles of riding.