I know this subject has been driven into the ground but, I just spent the better part of the day trying to locate any 225/50/R15's. The Toyo Extensa HP II and the Kumho ECSTA AST'S are no longer available. I thought I found an east coast vendor "Gun Hill Tire" but the last 6 they had were bought up by 1 person. Any other suggestions? Or are we stuck with the Kenda Kanine. I ride my F3-T rather aggressively.