Will 225/45-18 tires fit 18x8.5 wheels?
18x8 rims have been an determination on your 06 MX5. yet with a 215/40-18 tire length. The 225 width tires could be somewhat too huge and reason some clearance issues. 215/40-18 may be the right determination.
Morgan, Most 225/45-18 sized tires have a rim width range of 7 to 8.5 inches. So yes, though you are on the far end of a proper fit they would work just fine. You should be good to go.
