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PSA: You can mount All Season tires on the 21” Arachnids on Model S 2021+

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I had Michelin Pilot All Season 4 tires mounted today on my 2022 Model S LR with Arachnids.

From the factory, Tesla ships the following tire sizes:
  • Front: 265/35/21
  • Rear: 295/30/21
The fronts are perfect. Unfortunately, for the rears, Michelin does not make All Season 4s in 295/30/21, however, they make them in 295/35/21. I got these from TireRack.

The +5 in the middle number indicates that the tire has slightly more sidewall and is about half an inch taller.

I got these mounted on my Model S today and can confirm there are zero clearance issues. Here's a photo in low suspension:

1667846363397-png.872169
 

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You’ve tested this with some decent runtime?

I say that because I’ve had slightly overtall tires before and while they didn’t rub at the time of install, they did end up having issues once you got some suspension travel going.

I'll report back here if I run into any issues. Others have mentioned running these same tires without issue, but didn't make a dedicated thread about it.
 
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I had Michelin Pilot All Season 4 tires mounted today on my 2022 Model S LR with Arachnids.

From the factory, Tesla ships the following tire sizes:
  • Front: 265/35/21
  • Rear: 295/30/21
The fronts are perfect. Unfortunately, for the rears, Michelin does not make All Season 4s in 295/30/21, however, they make them in 295/35/21. I got these from TireRack.

The +5 in the middle number indicates that the tire has slightly more sidewall and is about half an inch taller.

I got these mounted on my Model S today and can confirm there are zero clearance issues. Here's a photo in low suspension:

1667846363397-png.872169

The sidewalls increased by 0.6" but the overall diameter increased by 1.2" total. Any issues with the speedo or traction control?
 
All season tires are not great in all conditions, why not using proper winter tires for winter and summer tires for.. summer ?
Pirelli has the correct size for front and rear.
 

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you will have issues running in low suspension...I had to replace my back tires after 10K miles as the inner wear will shred your tires...View attachment 880014

The OEM tires have the exact same issue. Here's are a few threads discussing it:

- Plaid tire failure
- Unhappy: Refreshed Plaid Shredded Tire and Damaged Rim
- Plaid tires separate at 6K miles.
- Plaid 21”rear tire woes - factory defect?

Ps. Your response to that service rep was unnecessary and nasty. It's not their fault that Tesla designed the vehicle like this.
 
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How is this setup holding up? I'm asking because I have 2022 long range and just bought a brand new arachnid set not knowing I couldn't run all season tires. I can't find them at all despite some references that they would possibly exist which doesn't seem to have come to fruition. Now I'm not sure if I should even keep these rims since I don't want the hassle of having two sets of tires.
 
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Can you take a pic of the rear tires for us?

Ok, but I feel like you don't believe me. I mean how would I have anything but the same tire model on the rear in a brand new car? I've never seen a car manufacture sell new cars with mismatched tires.
 

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Ok, but I feel like you don't believe me. I mean how would I have anything but the same tire model on the rear in a brand new car? I've never seen a car manufacture sell new cars with mismatched tires.
Don’t take offense - I was asking for the picture so I can show it to Discount Tire who keeps telling me these don’t exist. This is exactly what I was looking for. Michelin is what’s on most of these and that’s where some of the confusion is coming in. Thanks!
 
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Don’t take offense - I was asking for the picture so I can show it to Discount Tire who keeps telling me these don’t exist. This is exactly what I was looking for. Michelin is what’s on most of these and that’s where some of the confusion is coming in. Thanks!

Instead of showing him pictures, do him a much bigger favor and teach him how to use Google. This size is right on Goodyear's webpage. What a 🤡

1676792291242.png
 
Instead of showing him pictures, do him a much bigger favor and teach him how to use Google. This size is right on Goodyear's webpage. What a 🤡

View attachment 908891
Well, guess he was technically correct after all. The reason these don't pull up in his system is that this tire is no longer in production. I called Goodyear to confirm. They no longer make all-seasons in this size.