biggest tire size that will fit on an 18x9?

[mixedbreed02gt]

thinking about getting 18x9's for the stang...wondering what's the biggest tire size (width wise) i can run on the back 2 wheels?

please use the whole tire size too so I'm not having to guess.

e.g. 295/45/18.

thanks

 

[SVT32VDOHC]

A 295-45 will fit. It will be easier to mount too, because a 45 is taller than a 40 or a 35, making it stretch easier. The optimum tire for an 18X9 though is 265 or 275.