im lookin at the 18" 40mm offset rims. im havin trouble figuring out what size tires i could put with these rims...here's the link...

http://www.1010tires.com/wheel.asp?w...elmodel=Again5

 

Those wheels are 8" wide, and that"s what really determines what tires are appropriate. Offset is for determining if the whole business will fit your car.

235/50 (OE 18" GT size)
245/45 (about 1/4" shorter than OE, not enough to worry about)
255/45 (OE GT500 front tire size)

In all cases, these wheels should let the tires ride a little less harshly than the OE 235/50 tires on the OE 8.5" wide rims. Flip side is that you can expect cornering response to be a little "softer" than if those wheels were 8.5" or wider.


Norm