I have a couple of days off and went to Phuket to get me a set of Pirelli Diablo II for my CRF250M, but they're either discontinued or on back order, two months. I need 110/70/17 F and 140/70/17 R but even 150s were not available, not that I'd go for a 150 anyways. Their charts didn't even show a 140. But there are Michelin Street Radials available for 6K installed. I don't know much about that tire and if it is a good idea to go with radials. My IRCs are just starting to square off after 6,500km, they're still good but not very confidence inspiring. Are there any other tires you'd recommend which should be available?