Using Wheels of different sizes?

[Jdenkevitz]

Is there any danger to using 255/40/19 Fronts and 265/35/20 Rears?

Is there any danger to using different brands of tires in the front and back?

I have a 2016 PP GT and the PZero's lost most of their tread in the rear by 8,000 miles. I picked up a set of 20 inch Foundrys with PZeros and just had a 10,000 miles service, where I discovered a bubble on the front right tire.

I am considering getting Michelin PS4S tires, but not sure whether to use the 19 or 20 inch wheels. Is there any advantage between the two? I am mainly interested in cornering performance.

As driving with a bubble isn't a great idea, I wanted to just stick the 19 inch fronts back on for the time being.

Considering having one set of wheels with performance/track tires, and having A/S on another. Anyone do this? If so any recommendations for good A/S? I was recommended Continental Extreme Contact DWS06's.

Sponsored

 

[wireeater]

Different tread patterns can cause the car to pull in different directions. That's one of those gambles you're gonna have to make.

The rear diameter is going to be off by .3". A 255/35/20 would be the same as the front.

 

[yomamma219]

not trying to hijack the thread but are there any untalked about consequences of going from the factory 19x8.5 square setup to a 20x9 and 20x10.5 setup on an ecoboost?

 

[MSMStannyl]

From things I've read, it's usually recommended to stay within a 3% overall diameter variance between the axles (obviously side to side should always be the same size/tire). What you're proposing shouldn't be too bad on a RWD car. I def wouldn't do it on an AWD car!

I believe the PP 19" wheels with the stock size are 27.03" overall diameter.

The Foundry 20"s (that's what I have) with the stock size are 27.30" overall.

That's only 1% variance so you should be fine. As someone else said, having different tires front/back might technically cause some weird things to happen but I can't fathom it would be anything that you couldn't deal with. Especially if all tires are UHP summer tires. I def wouldn't do summer's up front and winters in the back or something along those lines. Lol

***Disclaimer - I am NOT a tire expert by any means. I've just done some research on this when I was getting wider tires on my foundry wheels. Between that research and common sense, I think you should be fine.***

 

[MELLOWYELLOW06]

Unless you are an all wheel drive car your fronts can vary from the rears. If you dont want your speedo to be off, try to stay very close to the OD of the factory tires.

But you want to make sure the 2 sides match. Dont put one size on drivers and another size on passenger, unless its a beater.

 

[Paul@PKAUTODESIGN]

You can run a doable staggered, we just did a setup like this in VS forged wheels

19x11 & 20x11.5 with 295/35/19 & 325/30/20 tires it can work. But my word of advise is to make sure the tire tread and UTQC match for the best ride.

Sponsored