still learning, so to get a little more or a little less, wheel circumference (stagger) you use the same tire with a rim that is narrower or wider... so as listed above 6 or 6.5 wide rim as i understand it, will make a wheel say larger then say an 8 wide rim... assuming this to be true, this is why we have lots of wheels.. how many different widths of rims are there out there..