Inside of front tyres bald - rest of tyre fine

[GtechRob]

Getting fed up with this. had the same on my 4s now exactly the same on my gts.

everything at factory spec - ie allignment and pressures. sure I drive briskly at times but I am not at qually lap balls out mode ever - this is a heavy electric car afterall. but, goddamit, it's a ruddy porsche and the gts variant so it should be able to handle slightly more enthsuastic peddling than normal.

net - have the insider of my front tyres completely dead and the rest with plenty of wear on them. rears are wearing reasonably even.

am running the goodyear eagles that came with the car on oem 21s - 265/35ZR21 101Y

my 4s was on michelin p4s - exactly the same issue.

most driving on rural back roads.

anyone suffering the saame? anyone know of a solution?

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[f1eng]

I have the same with summer tyres on 21" rims, it may be just an inevitable consequence of such low profile tyres and the geometry.
I know from racing to raise pressures for better load resistance so on the pot-hole strewn country roads around here I use the loaded pressures, which may save tyres and rims and -may- help inner shoulder wear, the ballooning you get at higher pressures depends on belt design and for low profile tyres that has to be stiff for them to work properly so may not make much difference but can't be worse.
I don't like the styling of most Taycan rims, none of the 20" or 19" on the configurator but I bought 20" winter tyres from Porsche on rims I quite like and am considering getting them painted vesuvius grey and fitting them with summer tyres and abandoning my favourites (the 21" Cross Turismos) as a compromise for Oxfordshire country roads.
I almost never drive on motorways and good surface A roads rarely too.

 

[Leccy61]

I have the same with summer tyres on 21" rims, it may be just an inevitable consequence of such low profile tyres and the geometry.

Just changed the fronts on my CT running 20” PS4s. The inner edges were worn more than the rest of the tyre, but it wasn’t too bad. They’re 45 profile so maybe there is an exaggeration with 40 profile 21”.

 

[SoccerMan94043]

Getting fed up with this. had the same on my 4s now exactly the same on my gts.

everything at factory spec - ie allignment and pressures. sure I drive briskly at times but I am not at qually lap balls out mode ever - this is a heavy electric car afterall. but, goddamit, it's a ruddy porsche and the gts variant so it should be able to handle slightly more enthsuastic peddling than normal.

net - have the insider of my front tyres completely dead and the rest with plenty of wear on them. rears are wearing reasonably even.

am running the goodyear eagles that came with the car on oem 21s - 265/35ZR21 101Y

my 4s was on michelin p4s - exactly the same issue.

most driving on rural back roads.

anyone suffering the saame? anyone know of a solution?

I'm sure you've seen this thread. But if not, it seems like one of the common denominators was driving mostly in the lowered suspension. The hypothetical fix was to perform an alignment while lowered.

https://www.taycanforum.com/forum/threads/taycan-problem-potential-catastrophic-tire-failure.16788/

 

[Taycan4S_UK]

I probably should check mine. Been running 21" for 10 months. I was looking at prices average is £1200 (with those promo codes). on Pirelli P Zero but considering Eagle F1 Asymmetric 5

 

[prj]

Set the toe more neutral. You will probably have to have it a little out of spec.
When I get my car back from PPF, I'll measure all the parameters on my Hunter Elite bench in all the heights.

 

[GtechRob]

ah. not seen that thread. seems that you are unable to adjust front camber... wow... there was me thinking Porsche are a sports car brand. have always run in lowered which I prefer - that is dissapointing.

 

[prj]

ah. not seen that thread. seems that you are unable to adjust front camber... wow... there was me thinking Porsche are a sports car brand. have always run in lowered which I prefer - that is dissapointing.

With camber you have half the tyre worn out, but these just have a tiny strip, which if you have experience with alignment it's toe that does that.

IDK why everyone assumes it's camber, when the wear pattern is text book toe.

Camber tends to look something like this (too much positive camber in the photo):

 

[GtechRob]

With camber you have half the tyre worn out, but these just have a tiny strip, which if you have experience with alignment it's toe that does that.

IDK why everyone assumes it's camber, when the wear pattern is text book toe.

Camber tends to look something like this (too much positive camber in the photo):

just seen the bit on toe - makes more sense

 

[Mad Matter]

Does the front have available positive camber adjustment or only a left to right camber shift?

 

[prj]

just seen the bit on toe - makes more sense

Yeah, here's a textbook example of toe wear:

That's what all our cars are doing...

IDK Why people keep saying it's camber. Just set your toe a little less than spec, and most likely it won't eat tyres anymore.

P.S.
At the expense of handling of course. Having toe adjusted out is what gives the car the lively feeling of reacting to direction change really well. Setting it more neutral will reduce that a little.

 

[prj]

Does the front have available positive camber adjustment or only a left to right camber shift?

The front has no camber adjustment, the only way is to loosen the subframe and move that, which is quite the ordeal, and of course it's left to right shift when you do that.
That said, I wouldn't bother, since it's not the problem.

 

[GtechRob]

Yeah, here's a textbook example of toe wear:

That's what all our cars are doing...

IDK Why people keep saying it's camber. Just set your toe a little less than spec, and most likely it won't eat tyres anymore.

P.S.
At the expense of handling of course. Having toe adjusted out is what gives the car the lively feeling of reacting to direction change really well. Setting it more neutral will reduce that a little.

that is terrific info - will give it a try - did you try?

 

[prj]

that is terrific info - will give it a try - did you try?

My Turbo S didn't really have any special tyre wear, the PZeros I got on it were worn evenly and I drove too little to get any such wear on the new Hankook ION's.

The Purple car though - I will measure everything next week on my alignment bench in all the ride heights!
Then we'll see if anything will need to be done or not. The car has 150km on the clock, so it should be pretty much factory values.

I am thinking, set the ride height to what you use normally and then adjust the toe to the innermost spec, and see how you get on. Or even a little bit more.
Unfortunately nobody knows what the exact "good" and "bad" number is.

 

[RED!]

I'm VERY interested in this. As a race driver, and an NSX owner, I find that toe does make the car more reactive, but also that it's not really necessary, the car is easier to steer and more eager to dive into corners with more toe - but on city streets its not really worth it vs. the cost of tires! IMO

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