[dpcompt]

I am thinking about changing from the 20" wheels to a 19" wheel set (OEM) and then going with an all-season tire. I have found that I would have to go up one size , from 235/40 to 245/40 front, and 265/40 to 275/40 rear. Would I have any fit or clearance problems?
Thanks in advance.

 

[xhyphenx]

Here is the comparison of the differences. The differences are minimal, and I highly doubt you will have any fitment issues. Hope this helps. 😁 👊

 

[dpcompt]

Thanks for your reply.

 

[Third]

You didn't include the wheel width and offset in your question. If you're contemplating one of the 19" wheels Porsche offers as an option on 718s, I'm sure there's no issue with regard to the wheel fitting. Otherwise the wheel width and offset specs become important.

For completeness, your speedometer will be off if the circumference of the new tire is different than the old, though it may not be a material amount.

 

[dpcompt]

O E M

 

[Scratcher405]

I have a set of 4 factory 19" Porsche Boxster S wheels w/ tires, less than 1,200 miles on 'em. I don't need them, just haven't gotten around to selling them yet.

 

[Scratcher405]

 

[AlG]

Hi.
New guy here on my first Porsche.

I’ve got an 2018 718 on 20” wheels and a colleague is offering some 18” alloys from a 987.

Is it possible to swap the 20” wheels for these and stick some winter tires on?

 

[sobiloff]

Assuming you don't have PCCBs, then yes. Double-check the offsets, though—it's not clear whether the 18's are OEM or aftermarket.

 

[AlG]

Thank you

yep, no ceramic brakes

the wheels appear to be genuine porsche alloys rather than after market, although I'm not exactly knowledgeable yet

In terms of tyres is there such a thing as N rated winter tyres. I'm hoping that regular ones will do because in the snow/ice I won't exactly be pushing the car anywhere near its limit.

I'm expecting the tyre pressure monitoring to stop working and then restart when I put the original wheels back. Is that correct or is there some reprogramming needed?

Thanks in advance

Al

 

[GTS18BGTS]

For completeness, your speedometer will be off if the circumference of the new tire is different than the old, though it may not be a material amount.

The speedometer can be adjusted to accommodate different size wheels and tires via the "Settings" menu of the PCM. It's accessed via the small screen next to the tach. The tire/rim size needs to be selected and this will adjust the speedometer accordingly. I discovered this when changing wheels. I guess the system picked up different TPMS in the wheels and notified me I needed to reset the parameters for the tire/wheel combination. In my instance it remained the same - 20" wheels.

 

[DriveInHouston]

...

In terms of tyres is there such a thing as N rated winter tyres. I'm hoping that regular ones will do because in the snow/ice I won't exactly be pushing the car anywhere near its limit.
...

For 18" wheels for a Base 718 N0 spec

For 19" wheels N0 spec.

No 20" winter tires at the Porsche recommended dimensions