Confused about wheels and tires

I'm searching some new wheels + tires for my LST, but I really don't know which one I should choose because I don't know which tires fit which wheels. From Losi (and some others) I know that they use 'series', 420 series wheels will fit 420 series tires of course (thats easy). But how do you guys know that (for example) a Imex tire fit another wheel? I like these tires: Click But there isn't any info about those tires, no series no millimeters no nothing...

So my question is; how do I know which tires fit which wheels?


Thanks,

Patrick