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Model S Plaid 19" vs 21" rear inner tire wear question.
- Thread starter rjenson54
- Start date
Interesting, I have 20x11 in the rears on my Plaid with Michelin Pilot A/S-4 and got 30k out of them and they wore evenly and I’ve done no suspension work and drive 100% on low.
It is not a tyre defect / tyre construction issue.
Some tyres, preferably higher sidewalls (ie smaller rim diameter) might be better to cope with the strain from a faulty wheel alignment, in this case wrong toe) by giving after/flexing so the thread still sits good to the ground.
When we see wear on the shoulder (where the sidewall do not touch ground when we have the car jacked and put it back on ground) it must be because the wheel is forced to deform so that part of thewheel touches/ rubs against the gound. Otherwis it would not wear.
Toe out in combination with high negative camber must be avoided.
An appropriate amount of toe in will force the tyre get slightly press against the center of the car and the slight deformation from this will cause the thread to sit nicely on the ground, not rubbing the inner wall or shoulder.
Some tyres, preferably higher sidewalls (ie smaller rim diameter) might be better to cope with the strain from a faulty wheel alignment, in this case wrong toe) by giving after/flexing so the thread still sits good to the ground.
When we see wear on the shoulder (where the sidewall do not touch ground when we have the car jacked and put it back on ground) it must be because the wheel is forced to deform so that part of thewheel touches/ rubs against the gound. Otherwis it would not wear.
Toe out in combination with high negative camber must be avoided.
An appropriate amount of toe in will force the tyre get slightly press against the center of the car and the slight deformation from this will cause the thread to sit nicely on the ground, not rubbing the inner wall or shoulder.
HollywoodCole
Member
Yeah that is weird. I have my car set to only go low above 60 but most of my miles are on the highway. No suspension mods.
HollywoodCole
Member
I wouldn't say worthless. If a huge number of owners are having the same experience it helps us to understand that it is not a unique problem due to one person's alignment being off and likely requires aftermarket arms to correct. It also helps to hear things like how much running your suspension in low affects it, etc.
HollywoodCole
Member
I'll let you know once I have it aligned, but the whole point for me was finding out if I needed to spend the $1,300 on camber + toe arms before paying for an alignment since it would be pointless if they can't get it to a reasonable spec on stock arms (only toe minimally adjustable) and then I have to pay for alignment again after installing aftermarket parts. I was partially hoping maybe just downsizing to 19"s would allow me to skip the aftermarket arms.
I don’t have any specs but I haven’t touched the alignment from the factory and I’m on my second set of tires and at 50k miles now the first set lasted a little over 30k miles and the second set will last that long as well. All I know is I don’t have any issues like everyone else.
TomServo
Active Member
Does Tesla have any issue performing warranty work if these parts are installed? Seems the RED shims would be easy to spot.
I have a 2022 Plaid as I mentioned in my post above. In my car you can set the ride to low at all times which I have done.
Here are some pics of my tires when I had them replaced at 30k miles.
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No they are 20” wheels with Michelin Pilot A/S 4 tires. If you look above my initial response was to the poster with 20” wheels that have the inner tire wear issue and I just said that I found it interesting since I didn’t have that issue and thought maybe it was the tires.
Comparing tire wear between a 500+ treadwear rating all season tire to max summer perf rubber is being obtuse to the nth degree. Then you're also not going like for like with diameter and width? lmao
PS4S is OEM to Porsche 911 GT3s, M3s, Bugatti Chirons and 2021+ MS. It's a very awesome sticky street tire and with it comes special compounds and stiffer sidewall design to get you amazing grip, feel, etc. For $560 a pop, they'd better be the best.
Get your camber checked and adjusted as necessary. Get your toe in spec. Once dialed in by a competent tech, you will be good to go for tens of thousands of miles on the OEM T2 PS4S. My '23 MSP is living testimony. I have minimal tread wear across the entire section width 10K miles now running ~-1.1-3 rear camber and front/rear toe at .05 to .15. There will always be some level of variability in an air suspension vehicle (personally can't stand air sus, but another topic).
If you don't want to go thru the alignment hustle, then have a coke and a smile and enjoy your soccer mom basic rubber like some of y'all are doing. But don't conflate the two. There's nothing wrong with the T2s. There's everything wrong with Tesla engineers choosing to release a vehicle with such a broad rear camber spec range sans adjustability from factory. Try running -2.5 to -3.5 on any vehicle. Tires will get p p pulverized.
PS4S is OEM to Porsche 911 GT3s, M3s, Bugatti Chirons and 2021+ MS. It's a very awesome sticky street tire and with it comes special compounds and stiffer sidewall design to get you amazing grip, feel, etc. For $560 a pop, they'd better be the best.
Get your camber checked and adjusted as necessary. Get your toe in spec. Once dialed in by a competent tech, you will be good to go for tens of thousands of miles on the OEM T2 PS4S. My '23 MSP is living testimony. I have minimal tread wear across the entire section width 10K miles now running ~-1.1-3 rear camber and front/rear toe at .05 to .15. There will always be some level of variability in an air suspension vehicle (personally can't stand air sus, but another topic).
If you don't want to go thru the alignment hustle, then have a coke and a smile and enjoy your soccer mom basic rubber like some of y'all are doing. But don't conflate the two. There's nothing wrong with the T2s. There's everything wrong with Tesla engineers choosing to release a vehicle with such a broad rear camber spec range sans adjustability from factory. Try running -2.5 to -3.5 on any vehicle. Tires will get p p pulverized.
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As I mentioned above, I just said it was interesting, sorry for getting you so worked up LOL. I guess I’ll have my coke and I will smile while you keep bitching about inner tire wear on a non-track car while I’ll enjoy getting 30k miles out of my tires and laugh at you complaining about having to buy tires every 10k miles. Have a nice day LOL.
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