18x7 +40 With 215/35r18 tires?
just bought some 18×7 wheels and was thinking of running a 215/35r18 tire, would I have any problems with that? Car has stock suspension and stock fenders.
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I'd say the diameter is too small.
OEM 205/55-16" (24.9") 215/35-18 (23.9") In the 18" range I'd say 225/40-18" (25.1") all around or some add 255/35-18 for the rear tires(25.0"), but wheel width is too narrow as the 225 requires a 7.5-9" wheel and 255 8.5-10". |
In addition, your spine will not like the 18's as much.
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Originally Posted by Turbonut
(Post 12326667)
I'd say the diameter is too small.
OEM 205/55-16" (24.9") 215/35-18 (23.9") In the 18" range I'd say 225/40-18" (25.1") all around or some add 255/35-18 for the rear tires(25.0"), but wheel width is too narrow as the 225 requires a 7.5-9" wheel and 255 8.5-10". |
Originally Posted by andrewmg
(Post 12327198)
do you mean the aspect ratio? cause 18 is the diameter I need for a 18" tire, I want something that will not be too huge but also not look goofy cause it doesnt fill in the gap at all.
I have 215/55-16" in front and 235/50-16" in rear and they certainly don't fill out the wheel well. |
Originally Posted by Turbonut
(Post 12327306)
No, 18" is the inside diameter, but the outside diameter (23.9") is 1" smaller than the OEM 205/55-16" (24.9") tires. In fact, Mazda was going to use 215/55-16" (25.31") tires, but at that time the 215/55-16" tire was just about non-existent, therefore the 205 was used.
I have 215/55-16" in front and 235/50-16" in rear and they certainly don't fill out the wheel well. |
205/45/18 would be only slightly larger in diameter than stock and be a good for for those wheels, 225/40/18s would also do the trick but would bulge over the wheels a bit.
I wouldn't anticipate any fitment problems with those wheels, they should fit in the fenders like stock. |
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