Wheel/Tire Size
06-13-2005, 09:28 PM
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Wheel/Tire Size
I was just wondering if anyone knew the max tire size/ width for the cobalt with 18' wheels on it. I had 17" rims on my cavalier with 225/45/17 tires will the 225 fit on 18" 's on the cobalt?
06-15-2005, 01:58 AM
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I've played around with a tire size calculator, cuz I was wondering the same thing 
Specification Sidewall Radius Diameter Circumference Revs/Mile Difference
215/45-18 3.8in 12.8in 25.6in 80.5in 787 0.0%
225/45-18 4.0in 13.0in 26.0in 81.6in 777 1.4%
235/40-18 3.7in 12.7in 25.4in 79.8in 794 -0.8%
245/40-18 3.9in 12.9in 25.7in 80.8in 784 0.4%
^sorry for the misaligned "table", I'm not sure the width of the SS wheels so I dunno if 235's or 245's would fit. I'd guess they're 7.5" wide.
Specification Sidewall Radius Diameter Circumference Revs/Mile Difference
215/45-18 3.8in 12.8in 25.6in 80.5in 787 0.0%
225/45-18 4.0in 13.0in 26.0in 81.6in 777 1.4%
235/40-18 3.7in 12.7in 25.4in 79.8in 794 -0.8%
245/40-18 3.9in 12.9in 25.7in 80.8in 784 0.4%
^sorry for the misaligned "table", I'm not sure the width of the SS wheels so I dunno if 235's or 245's would fit. I'd guess they're 7.5" wide.
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