Has anyone successfully used 18inch RX8 rim on their CX-5 without issue? I currently own a 2014 GT with the 19inch option and looking for a winter rim option to swap out shortly. The only main difference that I can see is that the RX8 uses a 8.5 inch wide rim vs the CX5 7 inch and the ET is 45 vs 50 on the CX-5. Other than that the center bore and bolt pattern appear to be the same. Would there be an ideal tire size on the 18inch wheel to keep it as close as possible to stock ride circumference?

Thanks!

 

Your 19" Toyos have a diameter of 28.7". Closest you'll get to that in an 18" tire would be 225/60R18 or 245/55R18 which bracket your 225/55R19 by +/- 1/10". Use this calculator for more info:Tire Height Calculator


As for the RX-8, wheels, they should work, but I would question whether it's advisable to go up 1.5" in width for a snow tire application. But then I have no real experience with snow tires living in sunny Northern Calif.!

 

I'm wondering if having a rims that is 1.5" wider then the factory may have some fitment issues, anyone have any experience in this case?

 

kowalsy, if you weren't so far away I'd give you a set of '07 Speed3 18x7 stockers just to get them out of my garage.