Quote:
Originally Posted by HotLap
Curious what's the diff in total wheel/tire diameter between the OEM 18's and 20"s? Wouldn't the 20's be a lower profile tire which should weigh less than the "air baloon" tires on the OEM 18" rims? Might not be as large of a diff as one might think?
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The spare for 20s is an 18" rim with a tire that is close in size to the 20s. I have not weighed any wheels and tires, but I would expect that the 20s replace rubber with metal, and the metal adds more weight than was lost in rubber. Though close in size, the 18s and 20s would be close in weight, with the 20 weighing in a few pounds heavier.
Now, what weighs more, a steel wheel, or an aluminum wheel? Is the 235/70/17 on a steel chrome wheel the lightest tire? I think I like the 255/65/17 on an aluminum wheel, but would still be inclined to keep my 20s.
Do you think we can get enough people to take a wheel off and weigh it? Even then, how would we keep track of each rim? How much weight does a tire lose as it wears out?