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MYP 21' Michelin Pilot AS4 Sizing

Apathy

Member
Oct 15, 2021
87
44
New York
So, I'm a little confused by all the tire sizes. I ordered some 19" Replica R241 wheels to fit some winter Hakkapellita tires on. With regards to the summers/all seasons, will any 19 inch tire fit on the 19 inch wheels? From what I can gather, everything fits, but some stuff may rub. Does anyone know the limits of the MYP tire size for front/back and what will rub? Also, what are the minimums for load on the tires?
 

jcanoe

Active Member
Oct 2, 2020
4,322
4,480
Maryland
So, I'm a little confused by all the tire sizes. I ordered some 19" Replica R241 wheels to fit some winter Hakkapellita tires on. With regards to the summers/all seasons, will any 19 inch tire fit on the 19 inch wheels? From what I can gather, everything fits, but some stuff may rub. Does anyone know the limits of the MYP tire size for front/back and what will rub? Also, what are the minimums for load on the tires?
It will depend on the width of the wheels; Tesla specifies 9.5 inch wide wheels for 19" and 20"; 9.5" for the 21" front and 10.5 inch for the 21" rear:

The Tesla Model Y Wheel Guide

Tesla specifies 255/45R-19 tires for the 19" Gemini wheels; i.e. 255mm wide, aspect ratio 45 (the height of the sidewall expressed as a percentage of the tire width), 19" inner tire diameter. Tesla further specifies Model Y tires as Extra Load (XL) rated tires, specifies the following load index (maximum weight rating) and speed rating for the tires:

19" wheels: 255/45R-19 104Y XL; i.e. load index of 104 (1984 lbs maximum load per tire) , speed rating of Y (186 MPH), Extra Load rated

20" wheels: 255/40R-20 101Y, XL; load index of 101 (1819 lbs maximum load per tire), speed rating of Y (186 MPH), Extra Load rated

21" wheels (front): 255/35R-21 98W XL; load index of 98 (1653 lbs maximum load per tire), speed rating of W (168 MPH), Extra Load rated

21" wheels (rear) 275/35R-21 103W XL; load index of 103 (1929 lbs maximum load per tire), speed rating of W (168 MPH), Extra Load rated

The Performance Model Y has a top speed of 155 MPH, for safety the tires should have a minimum speed rating of W (168 MPH) (Note: Some winter tires are only available with a lower speed rating.)

The Long Range Model Y has a top speed of 135 MPH, for safety the tires should have a minimum speed rating of V (149 MPH) although the OE tires carry a speed rating of Y (186 MPH) tires with a V, W or Y speed rating would be acceptable.

https://www.tirerack.com/tires/tiretech/techpage.jsp?techid=35

You can compare different tires including overall dimensions, outer tire diameter (the outer diameter will affect the speedometer readout versus actual speed) here:

Tire Size Comparison
 
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Apathy

Member
Oct 15, 2021
87
44
New York
It will depend on the width of the wheels; Tesla specifies 9.5 inch wide wheels for 19" and 20"; 9.5" for the 21" front and 10.5 inch for the 21" rear:

The Tesla Model Y Wheel Guide

Tesla specifies 255/45R-19 tires for the 19" Gemini wheels; i.e. 255mm wide, aspect ratio 45 (the height of the sidewall expressed as a percentage of the tire width), 19" inner tire diameter. Tesla further specifies Model Y tires as Extra Load (XL) rated tires, specifies the following load index (maximum weight rating) and speed rating for the tires:

19" wheels: 255/45R-19 104Y XL; i.e. load index of 104 (1984 lbs maximum load per tire) , speed rating of Y (186 MPH), Extra Load rated

20" wheels: 255/40R-20 101Y, XL; load index of 101 (1819 lbs maximum load per tire), speed rating of Y (186 MPH), Extra Load rated

21" wheels (front): 255/35R-21 98W XL; load index of 98 (1653 lbs maximum load per tire), speed rating of W (168 MPH), Extra Load rated

21" wheels (rear) 275/35R-21 103W XL; load index of 103 (1929 lbs maximum load per tire), speed rating of W (168 MPH), Extra Load rated

The Performance Model Y has a top speed of 155 MPH, for safety the tires should have a minimum speed rating of W (168 MPH) (Note: Some winter tires are only available with a lower speed rating.)

The Long Range Model Y has a top speed of 135 MPH, for safety the tires should have a minimum speed rating of V (149 MPH) although the OE tires carry a speed rating of Y (186 MPH) tires with a V, W or Y speed rating would be acceptable.

https://www.tirerack.com/tires/tiretech/techpage.jsp?techid=35

Tire Size Comparison
That's some very useful info about tires. Thank you
 

CrownDad

Member
Apr 23, 2021
94
90
Delaware
Has anybody talked to somebody about updates on the stock performance sizes?

My 275/35/21 are now showing 1/29/22 availability and the 255/35/21 are showing back ordered.

This is well after the initial dates i was given and would effectively put my Y out if commission until I get a wheel situation figured out
 

Noixd

Member
Aug 22, 2021
104
54
NJ
Has anybody talked to somebody about updates on the stock performance sizes?

My 275/35/21 are now showing 1/29/22 availability and the 255/35/21 are showing back ordered.

This is well after the initial dates i was given and would effectively put my Y out if commission until I get a wheel situation figured out
Yea I ordered the oem sizes but couldn’t wait any longer so I ordered 265/275 from discount tires direct and just got them installed today. All I got to say is wow! They look and drive great!
 

DarthStar

MYP MSM Tow
Supporting Member
Jul 7, 2021
194
287
SoCal
Yes, there were a few threads about people with this exact tire installed. It's only a slight rub when parking, but even then you're going so slowly that there's no wear/tear on it and just a slight smudge on the plastic of the wheel well on the fronts.
FWIW, I have experienced no rubbing at all, and I have to make a very sharp turn into and out of my garage. I'm running the AS 265/285/40 set up at 45psi. YMMV.
 

Nyc10jets

Member
Nov 15, 2021
46
48
Portland
Hi everyone, I’m expecting my MYP in mid December and I’m trying to make sure I’m not screwing up which AS4 tires to order (255-35-21 & 275-35-21) and where to order them from. I’m seeing Discount Tire being used, but anyone have experience using Costco?
BDE1F79E-D544-42BC-BABA-837349177263.jpeg
 

Noixd

Member
Aug 22, 2021
104
54
NJ
Hi everyone, I’m expecting my MYP in mid December and I’m trying to make sure I’m not screwing up which AS4 tires to order (255-35-21 & 275-35-21) and where to order them from. I’m seeing Discount Tire being used, but anyone have experience using Costco?
View attachment 734244
You won’t find 255/35/21 in AS4. Good luck trying to find the rears bc I heard they on back order!
 

Nyc10jets

Member
Nov 15, 2021
46
48
Portland
I ended up ordered the Michelin AS4’s from Discount Tires in Oregon for the 275/35/21 & 265/35/21. Costco is doable too but DT was really helpful over the phone. They found the 275’s in there Utah inventory and will have here next week. My MYP doesn’t arrive until 12/15-12/30, so they will just hold them until install. Was $389 for the fronts & $370 for the rears (1650 total with install). FYI If you pay for an order by 11/30, Michelin has a $150 rebate.
 
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Noixd

Member
Aug 22, 2021
104
54
NJ
I ended up ordered the Michelin AS4’s from Discount Tires in Oregon for the 275/35/21 & 265/35/21. Costco is doable too but DT was really helpful over the phone. They found the 275’s in there Utah inventory and will have here next week. My MYP doesn’t arrive until 12/15-12/30, so they will just hold them until install. Was $389 for the fronts & $370 for the rears (1650 total with install). FYI If you pay for an order by 11/30, Michelin has a $150 rebate.
You mean $70 rebate?
 

ctbear

Member
Nov 23, 2021
22
3
WA
I Ordered on 11/18 from Discount Tire in Oregon, said they should be here in about a a week as they had inventory in Utah. My car doesn’t care until 12/15-12/30, so they are holding and I’m going to prepay before the end of November for the $70 rebate.
Looking at your post above, you ordered 265 and 275 right?
I'm in WA so I am close enough to you. I won't get the car anytime soon (just ordered) but I might order tires now for the rebates.
 

Nyc10jets

Member
Nov 15, 2021
46
48
Portland
Looking at your post above, you ordered 265 and 275 right?
I'm in WA so I am close enough to you. I won't get the car anytime soon (just ordered) but I might order tires now for the rebates.
Yes, 275/35/21 & 265/35/21.

I’m going to call tomorrow the Discount Tire location and see if they arrived, ordered a week ago. There inventory says in stock, arrive in 1-5 business days in the Portland Metro locations. Between no sales taxes in Oregon and A $70 credit for 4 new tires by month end, may be worth the drive!
 
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Nyc10jets

Member
Nov 15, 2021
46
48
Portland
just got the MPS A/S 265/275 and they look great. gonna put some miles on them and report back.

Discount tire is running a Black Friday sale through the end of today, where if you order four of the Michelin all season tires, Theyll throw in $110 off and 5% off the cost of the tires. If you’ve been waiting to purchase them, this may be a nice incentive to get it paid for today, and save a little cash.
 

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