What tires size on Rears?

[monstar147]

Hello,

I just bought a nice set of Falken 17x7. I have to get a spacer on it to get it out about a 1/4 inch but what is the widest tires do you think i can fit on the rims?

[c david]

http://www.1010tires.com/TireSizeCalculator.asp

[monstar147]

That dave, but that not really help

[Arne]

There are two parts to this question. One is what is the widest tire (of a semi-approriate height) that will fit on a 7" wide wheel? While this will vary a little from brand to brand, for the most part the answer is 225 mm wide. 225's will be a bit pinched on a 7" but will fit.

But part two is just as important. And that is how wide (and tall) a wheel and tire combo will fit your car? And the answer there is more complex. Because it depends on both the effective offset of your wheels (including any spacers), and the particular suspension you have on the car. So the answer is - we don't have enough data to answer.

[thefastestz]

hmm...i have 17 x 7.5 with 245/45R17 Falken Azenis RT615s on them. It fits the rim...but on an early Z you don't want that sidewall ratio for sure.

[monstar147]

thanks for the advince Fastestz

The car is dropped about 2 inches and I know i need 1/4 spaces to bring them out or else they will rub on the back.

I was thinking about 235/45/55/17. but if i can get a 245 in there. that would be great...then do a 225/44-55 in the front.