Found some real beaut's----Sportsman and Sportsman Pro tires which are built for 15" rims with up to 18" rim widths!?! That's a bit off the scale---BUTT if I were to put on some more suitable and sane ones---would they stand up to fast street use--even mild-speed track use? High G stress, I mean? I noticed that these tires are rated "D.O.T. approved" and that the "Pro" series is made from "drag slick compound"---which I assume is going to be soft enough to pick up pea-sized gravel and other stuff deleterious to a nice paint job (as warned about in another thread). I'd appreciate any commentary and insight.