Model Y Performance 21" Tires - Larger, More Comfortable Fitment Details and Experience - Michelin AS4's (With Photos)

[Raurele]

Looks like the Costco $100 off 4 Michelin deal is back. But...am I correct in reading here that they won't install them since size isn't OEM?

Look a few pages back. There’s a 15% rebate active till the end of the year.

 

[Raurele]

Regarding Costco, I get the impression that:
If you try to order these bigger tires for the MYP, they will say no.
If you order the tires themselves without specifying the vehicle, the order will go through and they will put it on.

Make sense?

That's what I plan to do when it's time for new tires on my MYP. At about 1k miles now so it'll be a while yet.

-Paul

Correct. Look at the original post. They wouldn’t install for me. I brought all 4 tires to americas tire.

 

[kpanda17]

Regarding Costco, I get the impression that:
If you try to order these bigger tires for the MYP, they will say no.
If you order the tires themselves without specifying the vehicle, the order will go through and they will put it on.

Make sense?

That's what I plan to do when it's time for new tires on my MYP. At about 1k miles now so it'll be a while yet.

-Paul

I’ve done this many times
Just make sure you don’t go too big and they rub
That will be a sh_t storm

 

[altes160]

Look a few pages back. There’s a 15% rebate active till the end of the year.

thanks i got my rebate yesterday. about 3-4 weeks. FYI to all, once you submit, call them and they can approve and process. the people on the phone are very nice.

 

[Raurele]

thanks i got my rebate yesterday. about 3-4 weeks. FYI to all, once you submit, call them and they can approve and process. the people on the phone are very nice.

Yay! love when everything works out for people here.

 

[suny]

Hi,

I was looking to change OEM tire setup to get rid of that stretched look.
With all the experience in this and the other thread I gave the 265/40 R21 and 295/40 R21 Michelin PS All Saison a try.

I have to say the change is super disappointing!

On the OEM 35’s the MYP is a very sharp and snappy sport car like “performance“ car.
Changing to 40’s is taking all this away and gives so-so feed back cornering.

Totally regret that step and will change back to 35’s.

It feels like castrating a BMW or Porsch and make it a Merc, Volkswagen or Toyota.

Cheers,
Mike

 

[Megabrode]

Awesome! Thanks for sharing. So tempted to do this right now before the snow falls, but not sure there's much market for used OEM tires. My MYP only has 7K miles on it, so trying to convince myself I might as well get as many miles as I can out of them before making the switch.

I can't blame you. That said, I was so unhappy with the ride and curb rash that I dumped the stock tires at about 10K miles. What I got for the bloody pzeros: $80 for all four at a used tire shop. I had no place for them in a one-bedroom apartment. Repainting the two right-side wheels plus installing the Contis cost me $250. Since then, I've had minor curb encounters but no wheel damage, now at +37K miles. Plenty of tread left.

 

[kpanda17]

I can't blame you. That said, I was so unhappy with the ride and curb rash that I dumped the stock tires at about 10K miles. What I got for the bloody pzeros: $80 for all four at a used tire shop. I had no place for them in a one-bedroom apartment. Repainting the two right-side wheels plus installing the Contis cost me $250. Since then, I've had minor curb encounters but no wheel damage, now at +37K miles. Plenty of tread left.

What sizes did you select?

 

[ChargOn]

First thing i knew i wanted was beefier tires to protect the wheels and improve ride comfort
I moved the rear to the front and installed 295/35/21 on the rear. View attachment 854485View attachment 854486View attachment 854482

Hi, I'm picking up my new MYP this week and want to do the same tire set up you did. Is it possible to send a complete side profile only of your car?

 

[gregkang]

I recently had to replace my 2022 MYP OEM Michelin All Season 4's and after a lot of research, and tire hunting, wanted to share my experience and the direction I went. Valuable information for those close to ordering new tires. I just drive 2000 miles through Santa Cruz, San Jose, Sacramento, and did a weekend in Tahoe, driving on many dirt roads and rough roads.

First off, I will never go with another set of tires after having these. I made it to 37,000 miles with 3/32 left on all 4 tires. they wore evenly. Their performance in heavy rain and even 6" of snow was unbelievable. Ive had multiple cars with Pirellis, and always stuck with them, but was not happy with the miles I got out of them, and the thought of getting 27,000 miles on them with an EV just sounds terrible considering the price.

The Tires

I went up in size with width, and sidewall.

Stock/OEM for the MYP is:
Front: 255/35/21
View attachment 853290
Rear: 275/35/21
View attachment 853291

The tires I chose are:
Front: 265/40/21
View attachment 853292
Rear: 295/40/21
View attachment 853293
Fitment

Front wheels fully turned, there's still >1" to the inner tire well. So no rubbing at all, even with quick turns into parking lots (Where you would probably get rubbing the most)
Rear wheels haven't rubbed on any large bumps. I even tried to get them to rub. nothing.

The main bonus functionality wise is that the tires extend farther out than the rims. not much, but they do.
View attachment 853301

Look

The difference is huge. Pictures don't do it justice. When I see other MYP's now, the OEM tires look stretched and the amount of room in the tire well looks like a mistake. maybe not on the MYLR, but for a performance, the larger sidewall REALLY looks great. It creates the illusion that your car is lowered, but its actually ~1.5" higher clearance

It truly looks performance even though It can handle bumpy roads and "All Season" conditions even better.

Before:
View attachment 853299

After:
View attachment 853302
Efficiency

This part was really interesting.

Bigger tires have a higher rolling resistance than smaller tires which means they require more resistance and effort to get them rolling. However, if you do a lot of freeway driving at high speeds, larger tires can help increase your vehicle's efficiency.

So, days I drive a lot in the city with lots of stop and go, I get about 7% less range. but when I do a lot of freeway driving, I get about 7% better range.

I drive 150-350 miles a day, and have found zero difference in range because I do a wide range of road types. I really thought I'd lose range.

Feel

WOW, what a difference. Sure the suspension is still stiff, but I feel a LOT less of the small imperfections of the roads I drive on every day. even my girlfriend said she noticed it before I got to point it out. Speed bumps and things feel much better and not like im driving over a 2"x4". This is my favorite part of these tires functionality wise. Cant describe it.

There is no foam in the tires, but they are STILL quieter than the OEM with the foam. that stuffs a gimmick.

Things To Be Aware Of

Speedometer: It is not going to be accurate. Due to the larger diameter, it is off. I called Tesla, and talked to 2 different service centers, and there is nothing they can do about it. This seems like something Tesla overlooked. The only thing you can change is your rim size in your cars settings, but not the diameter...

So, when my car says im going 70MPH, im actually going 74MPH.
says 25, im going 26.5
says 40, im going 43
says 65, im going 68.5
says 85 (for AP max) im going 90.

This is something that as long as you keep in mind, it doesnt matter. I just changed my cruise control settings so it doesn't add 5MPH anymore. I chose 7% increase and it's fine.

I dont know if it's the new beta version, or that the car thinks its going slower than it is, but ive noticed that on AP/FSDbeta, it is taking turns a little wider and sometimes touches the lines on the outer edge of the turn if im going above 50mph. I'm pretty sure it's the speed issue.

This really needs to be able to be corrected by the user in the settings. sometimes switching brands can add .5in of diameter even if the tire is the same "size".

Conclusion:

Go Bigger! the OEM tires are actually stretched on your Uberturbines. they are meant for wider tires but Tesla went smaller for efficiency reasons, which in the end, didn't matter. Finding the OEM sizes of these wonderful tires is basically impossible. They are on a national backorder right now which is why I went for a different size in the first place. These tires arent cheap, but they ARE worth every penny.

American tire warned me that they weren't OEM sizes, and I told them I know for a fact they will fit and they had no problem installing them.

Here's some more pictures just for fun. These are some CHONKY tires. Thicc with 2 "C"s. tiny American tire man for reference.
View attachment 853304View attachment 853305

What about the sportiness? Any noticeable change to agility and 0-60? Thanks!

 

[WhiteAdobo]

Having trouble ordering this online with Discount tire. I’m trying to get the extra discount. It will only let me enter 1 vehicle at a time resulting in my cart being emptied of 2nd vehicle. Is there 1 vehicle I can try?

 

[altes160]

just some feedback after the tire upgrades:

1. smoother ride for sure
2. loss of efficiency - given due to size of tires
3. no rubbing at all from front or back
4. take off is slower due to wider tires if you plan to race
5. takes a little bit longer on the regen braking
6. leaves about 2.5-3 fingers in the tirewell which is the perfect gap imo


overall, i have really enjoyed this upgrade in tires and would recommend it. i have a MYP 22 .

 

[kpanda17]

just some feedback after the tire upgrades:

1. smoother ride for sure
2. loss of efficiency - given due to size of tires
3. no rubbing at all from front or back
4. take off is slower due to wider tires if you plan to race
5. takes a little bit longer on the regen braking
6. leaves about 2.5-3 fingers in the tirewell which is the perfect gap imo


overall, i have really enjoyed this upgrade in tires and would recommend it. i have a MYP 22 .

Confirming 265/40 front and 295/40 rear with room to spare
Maybe 275/40 front and 305/40 rear?

 

[WhiteAdobo]

Just placed my order. Getting installed on Saturday!

 

[suny]

Hi,

after the really bad experience with the 265/40 and 295/40 I changed the tires after 200mls.
Running now on 275/35 R21 and 295/35 R21.
Much better handling. She spins very sporty and no wobbly feeling with improvement of comfort.
But also some efficiency loss around 5% on my daylight driving of 100-180mls.

I think on the Uber Turbine Wheels the best compromise is still the OEM tire size to which I will change back after that actual set is done.

You can get my take off 40's in the Listing area.

Cheers.

 

[ElectricAnt54]

Hi,

after the really bad experience with the 265/40 and 295/40 I changed the tires after 200mls.
Running now on 275/35 R21 and 295/35 R21.
Much better handling. She spins very sporty and no wobbly feeling with improvement of comfort.
But also some efficiency loss around 5% on my daylight driving of 100-180mls.

I think on the Uber Turbine Wheels the best compromise is still the OEM tire size to which I will change back after that actual set is done.

You can get my take off 40's in the Listing area.

Cheers.

What was the bad experience?

 

[ElectricAnt54]

What was the bad experience?

Nevermind. I see your older post listing the reasons you didn’t like larger tires. I thought you had a bad safety experience but this wasn’t the issue.

 

[WhiteAdobo]

Edit: I spoke to Discount Tire and they reordered the correct fronts.

Quick question. Discount Tire just got my tires in and I think they ordered the wrong front. Its supposed to be XL not SL correct?

 

[Megabrode]

What sizes did you select?

265/40 and 295/40-21. Zero complaints.

 

[WhiteAdobo]

Got the call earlier my tires were in. Got them put in a couple hours ago.

The look is incredible! This is how the car should come stock.

The ride is day/ night difference in ride comfort. Every little bump I felt before is gone. The steering isn’t as snappy but Im sure that can be fixed if I change my steering to sport.

I 100% recommend just off initial impressions.

Attached are some pictures. If more are needed let me know!

Before:
F: 255/35/21
R: 275/35/21

After:
F: 265/40/21
R: 295/40/21

She’s a bad bitch now