[Yellow_Cake9]

Currently driving my 17 Cayman S with Goodyear Eagle F1 which are complete garbage tires, I'm closing in on 12K miles on the car, tires are not badly worn off BUT i dont like it.

I was thinking about getting maybe thicker tires?

What is the logical size i should go with?

I was thinking stepping up to 245 in the front and 275 in the back (stock is 235/20 265/20)

But i want a more thicker look, kinda like the GTRS2 but of course im not going to put a 325 in the back and look ridiculous, UNLESS someone has done it?

Also im set on michelin 4S, Ill hear some other suggestions.

Thank you

 

[MikePhDPE]

michelin AS 3+ 245/35/20 275/35/20

 

[roundtail]

Reasons for not sticking to N-spec?

 

[Yellow_Cake9]

Reasons for not sticking to N-spec?

The car its tuned i forgot to mention, need a bit more grip in the back, and also i like the beefy tire look

 

[jimmuller]

Well, I'm still on my OEM tires after 10000 miles but I like them. PS-4S, OEM size 235/20, 265/20. I have no reason at this time to look for something different.

 

[JazzCatGab]

I hope to make 10,000 miles on my P Zeroes, having about 5K on them now, including about 100 laps at higher cornering speeds on a track. I measured them the other day and looks like, for simplicity sake, I have about 6.5 on the front and 5.5 on the back. I was pleased to see they were wearing pretty evenly although I didn't adjust my tire pressures at the track either time. 235/45 ZR 18 front, 265/45 ZR 18 rears. I'm done with DEs until June 2020 so we will see if baby has a new pair of shoes by then. I personally love the grip and comfort of these Pirelli tires and will replace with same.

 

[Viffermike]

Look at other threads in this subforum, OP; there are several instances of folks who have put larger rubber on, especially in the rear.

That said, 245/275 is common -- especially with winter setups because there are far more tires available in those sizes than 235/265, even for 20-inch rims.

PS4S is a good three-season UHP choice. I run Conti ECSs, which are about as good (and have slightly better wet performance) and are somewhat less expensive, but don't wear quite as well. Like you, I'm about to try a set of PS4Ss.

 

[jimmuller]

That said, 245/275 is common -- especially with winter setups because there are far more tires available in those sizes than 235/265, even for 20-inch rims.

You are saying that 245 and 275 are more available than 235 and 265?

 

[don]

David Lemmens on here is running 20" carrera IV wheels with 255/35/20 and 305/30/20. I think they are 911 fitment with 8.5" front and 11.5" rear.

Cayman , Techart spoiler, Gt4 wing....

New member from Belgium Cayman , Techart spoiler, Gt4 wing.... Hi, here is my new cayman 2.0T with 20" carreraIV wheels 9.5 and 11x20 painted in color from the RS2 wheels, tires 255/35/20 and 305/30/20 Lowered , H&R springs, Techart frontlip, GT4 wing, Custom made side sticker porsche...

www.718forum.com

I think it looks really good but IMO 245 front and 295 rear is plenty big enough for a 718. If you go too large the heavier tired will start to offset some of the performance benefits.

 

[982CS]

I switched from P Zeros to PS4S and found a big improvement in wet performance in particular. Having said that, obviously moving to fresh tyres makes a big difference it itself.

 

[RotorOver]

I was thinking about getting maybe thicker tires?

When you say thicker tires, do you mean wider? I say that because when you change from say a 235 to 265 you are increase width by 30mm not necessarily height. If you want thicker tires (more side wall) generally you will go to a smaller diameter rim, say from 20" to 19" and maintain the original tire diameter or as close to it as you can so as not to mess with speedometer calibration and geometry too much.

Sorry if that is not what you meant, but thought I'd try to clarify it wasn't intended.

Also, IMHO 4S is the best summer tire you can buy.

 

[phroenips]

When you say thicker tires, do you mean wider? I say that because when you change from say a 235 to 265 you are increase width by 30mm not necessarily height.

Not true, the aspect ratio (middle number) is a percentage of the tire's width. As such, a 235/35R20 has a shorter sidewall, and smaller overall diameter than a 255/35R20

 

[roundtail]

Not true, the aspect ratio (middle number) is a percentage of the tire's width. As such, a 235/35R20 has a shorter sidewall, and smaller overall diameter than a 255/35R20

Precisely. And that is why either width or the aspect ratio changes with wheel diameter for the same vehicle, if I'm not mistaken.

 

[RotorOver]

Not true, the aspect ratio (middle number) is a percentage of the tire's width. As such, a 235/35R20 has a shorter sidewall, and smaller overall diameter than a 255/35R20

Sure, thats why I said not necessarily. Normally, you are attempting to maintain the diameter so you pick a width/aspect/rim size to do that. But, not the point I was trying to make.

 

[JakiChan]

Stock 19" size, just the PS4S. Not N-rated, but still epic.

 

[Viffermike]

You are saying that 245 and 275 are more available than 235 and 265?

As a non-OEM alternative, yes: Significantly more tire makes/models are available in those section widths. There are a number of threads about it on those 'other' forums, mostly regarding the 981, the same tire-size rules for which apply to the 982/718, despite the half-inch wider rear on the latter -- which, I will add, makes the 275 section width even more viable on OEM rear wheels.

 

[Pinocchio]

Currently driving my 17 Cayman S with Goodyear Eagle F1 which are complete garbage tires, I'm closing in on 12K miles on the car, tires are not badly worn off BUT i dont like it.

I was thinking about getting maybe thicker tires?

What is the logical size i should go with?

I was thinking stepping up to 245 in the front and 275 in the back (stock is 235/20 265/20)

But i want a more thicker look, kinda like the GTRS2 but of course im not going to put a 325 in the back and look ridiculous, UNLESS someone has done it?

Also im set on michelin 4S, Ill hear some other suggestions.

Thank you

I like the 4S on the track and around town

 

[gatorfast]

Got rid of my Goodyear Eagle F1s for Michelin ps4s, 235/265 N spec on carrera classic wheels

 

[DriveInHouston]

My 2018 CPO came with a toxic mix of Goodyear Eagle F1s in the front and Michelin PS4S in the rear. This mix tried to kill me by hydroplaning at 65 mph.

My current set is MPS4S N0 and they laugh at water on the road.

 

[JakiChan]

PS 4S on stock 19" in stock size. Not "Porsche-approved" but me approved.