I found this to be useful.
http://www.performancetirewholesalers.com/tire_height_chart.html
I found it interesting that the stock 185 60 15's are .19inch smaller than the
215 35 18's. Please note that I didnt perform a search prior to posting this info. In the event it has been covered in the past Please forgive me. :lol:

That's nice. I always use the calculator pages, but having everything visible is handy too.

good find

should add to the wheel tire fitment guide

another reason why i went with 215/35/18 :)

Is there anything that woiuld include cross section and or tread width for this.. maybe recommonded wheel width? I see that 225 45 16's and the perfect height, but I'm worried about them being too thin or fat for a 7inch wheel running 25mm offest.