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Discussion Starter · #1 ·
I did a search but couldn't come up with anything. I thought I saw a post once with some sort of chart or calculation tool. Anyway, here is my question... I had stock size rim and tire..17x7, 215/45/17 and am replacing that with 18x7, 215/35/18. When mounted, should it look/appear that more wheel well is filled with the new setup? Less filled? Equal to the stock?

I have 2 rims on and waiting on the other 2. So the car is still jacked up. I am just trying to get a feel or idea of what it will look like. I do have the progress tech springs(svt).

It is funny because up next to a 17x7, 225/55/17 these 18's looked small!
 

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Well based on the sizes you stated the 17 inch tire is approx 24.6 inches in diameter and the 18 is 23.9 inches in diameter. So it will fill less of your wheel wells.

-Scott
 

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Discussion Starter · #3 ·
Thanks. So there really isn't much difference.

Where did you get that info? I would like to check some other sizes.

nevermind..saw the link below and another link to the miata site.
 
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