The 19" have the same tread pattern as the drag radials. The guy that holds the fastest time for an srt6 runs them. I'll ask and see how they are holding up. They are not cheap though, and not durable enough to run on the street and last. I'd say one of the cheapest is the 16" or 17" rim and tire. Not sure when the next big race is in Tucson, but I'll be out there when it cools down.