Is it worth buying 285/40s?

[Yakb0]

I currently have the following tires on my car with the performance pack rims.
Front: stock 255/40 P Zeros, over 15k miles.
Rear: 275/40 Pilot Super Sports, about 5k miles.
I also have a set of snow tires in the stock sizes, for the winter.

I just bought a set of 19" x 10" wheels. My current plan is to put the rear tires(275/40) on the front set of wheels, and buy 285/40s for the rear wheels.

My questions are
Will this work?
Am I locking myself into an oddball tire size, that will be very hard to upgrade from in the future?

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[dvs73]

285/40 would be to meaty. to much side wall in my opinion. i do a 285/35 or a 295/35.

 

[Hattrick]

2nd that. U may even be able to go 305/35, check tire rack for tire/wheel sizes in spec chart for your wheel size.

 

[Yakb0]

285/40 would be to meaty. to much side wall in my opinion. i do a 285/35 or a 295/35.

Does that apply even if I keep the 275/40s up front? Having smaller diameter tires in the rear sounds kind of strange.

 

[Seatown Stang]

I picked up a pair of Firestone Firehawk Indy500 275/40 and I think they are too tall...a 285/40 would give you a 4x4 look stick with a 35

 

[NightmareMoon]

So your front Pirellis are probably shot, and your rear MPSS tires have probably 20k miles or more left in them.

Ideally, take the 275/40's and sell them to somebody looking for rear tires and go 285/35 square MPS4.

but... with the MPSS, the 275/40 is only 2% larger than the OE 255/40 (27.7 vs 27.1 diameter)

The 285/40 is only 1% larger than the OE rear, and 3% larger than the OE front.

So yeah, you could do 275/40 front and 285/40 rear, or just 275/40 square are rotate them. A 3% diameter change isn't enough to loose any sleep over.

 

[jasonstang]

Does that apply even if I keep the 275/40s up front? Having smaller diameter tires in the rear sounds kind of strange.

It's not smaller. 40 means 40% of the tire width.

 

[angermgmt14]

I was running a 285/35 square set up on those rims I sold you. If you'd like to have the ability to rotate all the tires stick with the square set up. If you want a staggered look I'd go 275/285 F and 295 R.

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