I want to get these rims but they only come in 18x7.5, and I want to run 265 in the back and about 245/235 up front. Will these tires fit on the rims.

 

The 235/245 will fit. You need 18x8.5 to fit 265 tires though.

 

18x7.5" in hte rear is a honda civic size rim, for a Z you need something much larger...waht rims only come in 18x7.5"??

 

every site I go the 5ZIGEN copse(sp?) says only 18x7.5??? But I need to run 265R/245F.

Anyone know the weight of the stock rims without the tire?

 

The 245/40s up front would be fine (though an 8 to 8.5" rim would be better. I know of no 265/40 for the rear. The 275/40 is the same hight as the stock 245/45s and would be the right size for the back. It would require a 9.5" rim however.

Lou

 

Yea...you will definitly need to step up a bit to a 2 piece special order version of that wheel and do 18x8 and 18x9s.

 

Why do you need to run that tire size? Do you already have the tires?

You could run those wheels with the stock tire sizes:
225/45-18 F
245/45-18 R

Anything above 245 is stretching it on a 7.5 rim.

-D'oh!