another rim width question.
I researched rim width, but never found an answer. will running the same size tire on a wider rim lower the heighth of the tire. if that is the case, a wider rim should lower mpg. my crx has 4" wide rims, but one of them looks like it has been replaced. I haven't determined if it is 4", or 4.5". it is on the front. . I am thinking I should switch it to the rear until I can determine the width, or find a replacement rim. Am I worrying about nothing because of the small difference?
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