What is this tread mark meaning ... ?

[DashSTI]

I replaced Trefore with Pilot Sports 4S 2 weeks ago. And thanks to tons of pollen, I could see how's tire status looks like.

Rears showed a kind of ideal, slightly negative side.

But front showed odd...

Only center and very inside are touching to ground.

I expected a bit over inflation. So tried to reduce pressure from 35psi to 30psi, but still like this.

My question is
Is 30psi for PS4S still to high ?
Do I need to reduce more until ideal touching mark I can see ?

Or something wrong tire itself... ?

I would very much appreciate your experienced advice

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[Rocket Man]

That is odd. I would have a 4 wheel alignment done to rule that out. I mentioned your camber settings in the other tire thread. Also I wouldn't run less that the recommended pressures. A few pounds more sometimes, but not much less. Heavy car and high speeds not a good combo with low pressure.

 

[Rocket Man]

That rear looks like a lot of negative camber.
The front looks like some, but better that the rear.

 

[Longitude Zero]

Get a four wheel alignment done and then see what it looks like

 

[REV745DH24]

I replaced Trefore with Pilot Sports 4S 2 weeks ago. And thanks to tons of pollen, I could see how's tire status looks like.

Rears showed a kind of ideal, slightly negative side.

But front showed odd...

Only center and very inside are touching to ground.

I expected a bit over inflation. So tried to reduce pressure from 35psi to 30psi, but still like this.

My question is
Is 30psi for PS4S still to high ?
Do I need to reduce more until ideal touching mark I can see ?

Or something wrong tire itself... ?

I would very much appreciate your experienced advice

Interesting, I would have to check that on my vehicle and see what I am getting!?? I have made the same kind of tire change you’ve done!

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