275/40r19 or 285/35r19 for square setup on 2019 PP1?

[Gont]

I have a new 2019 Mustang GT PP1 and I am getting ready to order M600 wheels in 19x10. What are the advantages and disadvantage to each size? I know my speedometer will be off a bit if I go to 285/35. I plan on installing Michelin A/S 3+ unless there is something better for year round use. It doesn’t get very cold here in New Mexico.

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[jefffrot]

I don't think you can go wrong with either as long as you get the correct offset on the wheels. On stock springs i personally think the 285/35 have a little too much wheel gap but if you plan to drop it in the near future, that shouldn’t matter after the drop.

 

[BmacIL]

No reason for you to get an all season tire where you live. I'd look at summer tires with 300-340tw like the PSS, Conti ECS, Indy 500 or the PS4S that came with the car.

If you're not lowered or planning to be, I'd probably do the 275/40. Otherwise the 285/35 is pretty much a perfect fit on those wheels.

 

[boos550t]

Only reason to get a A/S tire is for the tread life, which is what he may want them for.

OP, You can also try the Continental DSW06 if you want A/S

You can probably also take those MPS4S off of the stock pp1 wheels and use the 275/40/19s so you would just have to buy another set of 275/40/19s

MPS4s run huge too so it will look fine on the 10"

 

[ronnieb1958]

Only reason to get a A/S tire is for the tread life, which is what he may want them for.

OP, You can also try the Continental DSW06 if you want A/S

You can probably also take those MPS4S off of the stock pp1 wheels and use the 275/40/19s so you would just have to buy another set of 275/40/19s

MPS4s run huge too so it will look fine on the 10"

How huge do the MPS4's run? I'm thinking about putting them (275/35/19) on some 19x9.5 RTR Tech 7's...I'm hoping that will give my 2015 Ecoboost a nice flush look without the need for spacers.

 

[Gont]

No reason for you to get an all season tire where you live. I'd look at summer tires with 300-340tw like the PSS, Conti ECS, Indy 500 or the PS4S that came with the car.

If you're not lowered or planning to be, I'd probably do the 275/40. Otherwise the 285/35 is pretty much a perfect fit on those wheels.

Even if the temperatures dip down into the 30s and 40s at night?

 

[shogun32]

as long as your tires are back up to 40 before you drive off. spend $10 for an IR thermometer to measure, or park indoors.

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