What size tires should I get?

[Gdheinz]

I have the staggered amr 19x8.5/19x11 and need to know what size tires I should go with in order to not rub or be completely stretched.

 

[stkjock]

What year car, BS and offset are the wheels?

 

[Norm Peterson]

I have the staggered amr 19x8.5/19x11 and need to know what size tires I should go with in order to not rub or be completely stretched.

Is your car lowered? What tires were OE for that car, and are you willing to go with tires that are slightly taller or slightly shorter?

What do you consider "completely stretched"? Here's what 285/35 on maximum-recommended 11" wide rims looks like (they're 18's, but wheel diameter does not affect the sidewall shape/amount of bulge or stretch).





Tires on "measuring width" rims have a little more sidewall "shape". Here's what 265/40's look like on 9.5" rims.




I'm afraid that I don't have any good pictures of anything on 8.5" wide rims. But I suspect that your tire size there is going to be dictated by maintaining close to the load capacity of the OE front tire size and the door-sticker inflation recommendation for them. Perhaps 255/40-19, which is slightly "pinched" on an 8.5" wide rim???


Norm

 

[Pentalab]

I have the staggered amr 19x8.5/19x11 and need to know what size tires I should go with in order to not rub or be completely stretched.

255-40-19 for the fronts..which will be pinched by 1/2". (or 245-45-19..which will be stretched by 1/2"......and typ handle + feel better)

305-35-19 for the rears.

 

[Gdheinz]

2007 mustang offset 30+mm and backspacing 5.93”

I have been told to go with 295 in the rear and I would like front and rear to be as similar as possible. Also the car is lowered 1.5”

 

[Norm Peterson]

255/40-19 is probably still going to be the best match for 295/35's, even though 8.5" wide rims are just barely wide enough. Handling will at least be safe, if somewhat "soft".


Norm

 

[Gabe]

Factory Ford fitment on the California Special 19x8.5 wheels is a 245/45/19 tire.
For your set-up I'd say go with that for the front and 305/35/19 for the rear.
And set your tire size in the tune based on the rear tire size.