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actually..... (very informative) (archive)
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Posted by Ryan H on April 25, 2000 at 00:30:00:

In Reply to: you would need more like 255/35 or so... more posted by Josh///M3 on April 24, 2000 at 21:00:17:

diameter of...

225/45-17 = 225 x .45 / 25.4 x 2 + 17 = 24.9724in
235/40-17 = 235 x .40 / 25.4 x 2 + 17 = 24.4016in
245/40-17 = 245 x .40 / 25.4 x 2 + 17 = 24.7165in
255/40-17 = 255 x .40 / 25.4 x 2 + 17 = 25.0315in

the overall diameter of 225/45-17 and 255/40-17 are very close. But its good keeping the stock tire sizes i guess.

: The sidewalls of the 255/40 would be too high (sidewall) for the car... i think a lower profile tire might work, but in the end just stick with the stock size.

: C ya,
: Josh



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