What would a 460 be in metric, is that like a 120 or something ? How much bigger is the next size, like a 130 I guess, would that be about 3/8 wider or what? I want to oder these tires http://www.klr650.com/MEFO%20Sport%20Tires.htm and want to know before I call. I might add those are supposed to be one of the longest wearing tires out there http://www.advrider.com/forums/showthread.php?t=123273 YES, they have 18's, just don't list them on the site. Is there some sort of conversion chart for tires?