I'm new to BikeCad, but I've been building odd bikes for a while. I've been wanting to build a bike with an extended rear wheel for a while. I'm sure most people saw "Mayhem" in the Design Archive and figured it was just a design by someone just wanting to have fun with the program, and that no one would seriously build it. lol. Well, here it is... :D Although it's not quite finished yet, I have taken it for a few test runs. When riding it in a straight line, one can forget about the 12 ft long configuration. The length is definitely brought to your attention when you need to take a corner. Still lots of fun to ride though. :) More pics to come when I get it painted.