Originally Posted by DirtyD
He bought the tires from American Muscle and that's the size they recommended to him. I've already asked him that question a while back and that was his answer.
American Muscle are idiots.
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Originally Posted by JDMLOL
My current wheels are the staggered 20 inch (20x8.5 and 20x10) AMRs and the current tire setup leaves the wheels sticking out further than the tire which leaves them exposed to curbs. The current size of the tires are 255/35r 20 up front and 285/30r 20 in the back.
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Mmmm, I wouldn't say they are idiots lol. One inch is 25.4mm. So 255mm/25.4 comes to 10.039 inches, so the tire should be wider than the 8.5inch rim, same for the rear. I do know that different manufacturers measure differently... somehow. I have BFGs with a 265 in the front on a 9inch wheel and the tire looks wider than that. Also have a 285 on my 10inch rears and the tires stick out much wider than the wheel.
Long answer short, his tires shouldn't be stretched based on the measurements unless I am doing it wrong.
-Alex