Hello,
I need recommendation on tires size in front and back for my 06 C2 S. Shopping for Michelin Pilot Sport 4 S. Currently I have P Zero on 19 inch wheels.

Thanks.

 

This would entirely depend on what wheels you have.

I believe the OEM tire size for 19s was 235/35 and 295/30/19

 

Part of that depends on the width and offset of the wheels. If OEM, both those numbers should be next to the valve stem.

235/35-19 and 305/30-19 will fit fine on any OEM wheel. Some of us with custom wheels run up to a 255 on the front with 325s on the rear.

 

On stock 19" lobster forks, I'm running 245s and 305s.

 

On stock 19" Lobster Forks, I was running 235/305 PS4S with 15mm spacers on all 4 corners. With that set up, if I were to do it again, I would do 235/295 with 15mm spacers, or use less spacer, maybe like a 10mm with the 235/305s.

 

Didn't the S come with 305's on the rear from the factory? Base came with 295 as I recall it.

 

My '06 C2S came with 295/30/19. My sons '07 C2S came with 305/30/19.

 

On the 997.2 Carrera S, the standard rear tires were 295. The base Carrera had 18” 265 width rear tires.

The AWD & Targa 997.2 models had wider rear tires (on both 18” and 19” wheels). The technical data section in the owners manual gives a good overview.

I’m assuming the GTS models also used the wider tires as well.

Karl.

PS: I’m not as familiar with the .1 models...

 

As others have noted, it’s wheel dependent (e.g. if you’re running aftermarket wheels, or say running wide body Turbo rims on your Carrera).

But if you’re running stock Porsche wheels for your model, the technical data section in the owners manual has all the information you need if you want to stick with OEM sizes. At the end of the day, Porsche selected those tire sizes to balance wear, grip, handling, etc.

Karl.

 

I take it 15mm was a bit too wide for 305?

Planning to mount 235/305 PS4S on my lobsters.. currently have 8mm/15mm front/rear spacers. Should I downsize to 10mm rear?