So, I'm coming due for a new rear tire, probably in the next 3 weeks when the the bike comes due for inspection at the end of the month. its not smooth at the wear band yet, but I can almost garuntee that the inspector will fail it on general principles. I figure I'll order a tire now and have it on hand if they fail it, or stash it for a few months for later installation. Heres the question: The stock, as we all know, is the Dunlop D402 MU85B16. As far as I can tell, that is the ONLY tire that size made (150/85/R16?). Am I asking for trouble by ordering a 150/80 or 150/90? My research has found more than a few tires in those sizes that cost half as much. Thoughts?