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Model Y Performance 21" Tires - Larger, More Comfortable Fitment Details and Experience - Michelin AS4's (With Photos)
- Thread starter Raurele
- Start date
Went ahead with the 40s yesterday and have to say that visually they are incredible. I was a little worried that being an older driver, I wouldn't like the look of them but honestly pics do not do it justice. Haven't driven them enough to comment on ride quality or battery usage yet, but so far I'm really pleased with them.
It’s not about larger or smaller tires, it’s about the delta between front and rear, or left to right for that matter. I’m curious if there is a potential binding issue or does the computer manage the delta for you?
You're overthinking it. the difference isnt big enough to have a noticable impact. get an alignment and there is no problem. I drive like a madman on windy mountain roads and highways as well as snow/rain/mud traction control is perfect, suspension is perfect. everything is in good shape with my car after running through a full set of these in 37k miles. wear was even too.
Alignment has nothing to do with it. It’s about how the car functions to keep the wheels spinning at the correct rate. What you’re suggesting would prove detrimental on many vehicles with traditional transfer cases.
And the impact wouldn’t be noticeable, but it could prove to have a negative effect.
If you go in for warranty work for your drive unit(s) at some point and they realize that your motors had to spin at a different ratio front to rear, than what is programmed/expected, you might not be able to defend your claim.
Weird hill you are fighting on.. To be strictly speaking, as long as each drive unit has similarly sized wheels it will be fine.
Ergo, as long as your left and right is same model size, you'll be alright. Model y doesn't have mechanical linkage in middle connecting front axle to rear.
To reiterate, Model Y is fine if front and rear tire sizes are little different. If you swap out tires, just reset learned tire setting and have fun driving. Small differences are within design boundary condition.
So you are right about worrying about 'what is programmed/expected' and let me assure you, that the margin is fairly wide.
greatauror28
Member
OP, have you thought about premature wear on your front steering assembly having bigger thus heavier set of tires?
nope. people have been putting larger tires on cars forever. these are only slightly larger. handles like a dream, and had things checked out about a month ago. everything's perfect.
I wouldn't. Pirellis will give you half the milage. they are not great tires unless youre on perfect freeways 100% of the time, or using them for track.
edit: pirellis arent bad tires. Their rubber is just softer. Michelin AS4's are one of the best tires you can currently buy for all road conditions, and you'll get 35k+ miles out of them. I dont now anyone who is as hard on tires as me and I get 27k this last set. replaced at 3/32. could of made it to 40k if I wanted to
But if it's requiring you to put in a car that has that size OEM, I had to select "2021 JAGUAR F-PACE SVR" for the 295s. when I showed up with my Tesla they dint have a problem with it. just made me sign a thing saying im aware that the 295 isnt the OEM fit for my vehicle.
ElectricAnt54
Active Member
@Raurele , you still noticing the above or was the issue more related to FSD Beta version and the issue went away after some updates?
How can you assure that? I know a lot of folks are running non factory staggered sizes, but I haven’t seen evidence that’s it’s, in Tesla terms, within spec.
I agree, with no mechanical link, there’s a good chance it’s safe, but I’m just wondering how much delta is ‘okay’.
If the car has any traction control, then it does check for specific ratio of wheel speed variation. This is where the limits start to come into play. The car could potentially be fighting it, constantly in a warning state. While I agree that it’s likely within spec, since it’s not reducing power on anyone, you likely closer to the point where it will start to engage a traction management algorithm.
WhiteAdobo
Member
Have you ran the 40s on both sets? Trying to find someone who has ran 275/35/21 295/35/21 and 265/40/21 295/40/21 to see which they liked better. I’m personally leaning towards the 40s.
No idea honestly... I went wider because the rims looked silly being out farther than the tire. if youre just looking for a wider looking stance, get some spacers.
Is this the current consensus?
I just picked up a 23 MYP and I’m concerned about getting my rims getting curbed in NYC. I was thinking of something thicker to protect them…what’s the best move?
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