Sixth
Member
Rear is not the problem, it’s what will you pair in the front in relation to the size of the rear
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Suspension Clearances for Wider / Taller tires
- Thread starter Quorky
- Start date
I now have 600+ miles on this set up and can confirm improvement of ride quality over stock p-zeroes.
I am seeing a hit to my efficiency (as expected) and will post the total delta once I reach 1000 miles.
mmatlock
MYP W/W NF373xx || OD: 11/6/21, Del: 2/18 @ KC
Thanks man, anxious to see that. I'm ok with that tradeoff, should still have plenty of range and a better ride for our in-town commuter.
Are you adjusting your efficiency for the error in the speedometer? Your true efficiency per mile should be viewed as "watts per mile consumption you see on your screen" divided by 1.039 (the error coefficient of your speedo). Please let us know if you are still seeing lower efficiency after this adjustment.
mmatlock
MYP W/W NF373xx || OD: 11/6/21, Del: 2/18 @ KC
Buyer beware, Walmart botched this order:
Walmart.com has the size and Michelin model number listed correctly but they shipped me two 265/35ZR18s. Wrong in three ways (265 v 285, 35 v 40, 18 v 21), huge whiff.
Did it! Installed 265/40 21 + 285/40 21 Pirelli Scorpion Winter tires on Ubers.
First impressions - love the added height and the look, the ride is less rigid, and the speedometer is 2-3 miles understated (says 70, going 72). No noticeable effect on the handling yet and the rims are not the furthest protruding part of the wheel anymore.
The tires were ~ $1500 shipped from TireRack and DiscountTire did the mounting for $85. Both TR and DT were cautious and warned of the tires being oversized. DT even tested the front and back before finishing the other side just to be sure. They definitely fit with no issues so far (45 psi) and I think 295/40 21 rears would have been ok too.
Thanks for everyone on this forum for helping to figure out valid options for the Uberturbines.
First impressions - love the added height and the look, the ride is less rigid, and the speedometer is 2-3 miles understated (says 70, going 72). No noticeable effect on the handling yet and the rims are not the furthest protruding part of the wheel anymore.
The tires were ~ $1500 shipped from TireRack and DiscountTire did the mounting for $85. Both TR and DT were cautious and warned of the tires being oversized. DT even tested the front and back before finishing the other side just to be sure. They definitely fit with no issues so far (45 psi) and I think 295/40 21 rears would have been ok too.
Thanks for everyone on this forum for helping to figure out valid options for the Uberturbines.
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mmatlock
MYP W/W NF373xx || OD: 11/6/21, Del: 2/18 @ KC
Fills the wells perfectly, exactly what I want. Kicking myself for not ordering them sooner, can’t find them anywhere now.
Megabrode
Member
Now I'm worried. I ordered the correct sizes from Walmart on Friday. Paperwork confirms that. We'll see what they shipped this Wednesday.
Did they say they'd get you the right tires? I'm questioning if they even have them. Last week they listed one 265/40/21 remaining, so I didn't order. A day later they listed both sizes in stock with the 285/40/21 priced at $219.99. Too good to be true?
Your MYP looks amazing with them!
The stock set up just looks weird to me with the Ubers sticking out past the rubber. The improved ride, looks, and rim protection make this switch a no-brainer for me.
Someone parked a brand new MYP (still had temp tag) with the OEM rubber next to mine this weekend and it already had some nasty curb rash on one rim.
mmatlock
MYP W/W NF373xx || OD: 11/6/21, Del: 2/18 @ KC
The website listing and my order confirmation have the correct sizes listed but the tires (and barcode on the tires) are definitely incorrect. It's been an adventure. I've been to Walmart twice to try to return them and they don't seem to have any idea what to do. I assume since the barcode is completely incorrect, it's showing "not found" when they scan it to return from my order info. I ended up just leaving them there with the store manager's word that they would manually push a refund to my credit card.
I'm pretty confident Walmart doesn't have any of the correct tire in stock (especially after DiscountTire telling me only 2 were left in N. America in their system). I'm not sure I'd trust them if they told me they have them anyway.
Megabrode
Member
That's just insane. In the belly of the beast!
"My tires" (now in doubt) will be delivered for pickup at a local Walmart. We'll see what the tide brings in.
"My tires" (now in doubt) will be delivered for pickup at a local Walmart. We'll see what the tide brings in.
mmatlock
MYP W/W NF373xx || OD: 11/6/21, Del: 2/18 @ KC
In another twist, I just saw on our Ring that FedEx dropped two more tires today. I’m hoping they’re the correct 265/40/21s but who knows since they weren’t supposed to arrive until late Dec. We shall see…
mmatlock
MYP W/W NF373xx || OD: 11/6/21, Del: 2/18 @ KC
Good news, the two tires that arrived from Walmart.com today are the correct AS4 265/40/21s for the fronts. Hopefully that means at least two of yours will also be correct, keep us posted. If by some miracle you receive all four correctly, I'm going to retry ordering the 285/40/21s from them, would love to get them for that advertised price.
Edit: forgot to mention they have the Ring Velour detail on the sidewall, I think I read they may have done away with that? Hope not, it looks great.
Last edited:
Megabrode
Member
Congrats! Those fronts look beefy! (I do have a lifelong tire fetish — with or without velour. It's the smell.)
I loved the previous generation Michelin A/S 3 Plus "ultra-high performance" on my BMW M3. These should be even better. If all four arrive tomorrow, Discount Tire will mount & balance before my T-Day drive to NYC. $84. Local Walmarts won't install 21" tires. Tesla charges $170.
Yesterday I called Walmart to confirm it's four tires, not two, on the way. I'll post which sizes appear.
I’m currently debating my options for our incoming MYP as socal residents who frequently make trips to Mammoth and Bear and want decent snow performance.
I could downsize to a 19/20” wheel and get some solid do-it-all tires like DWS06s or even some Quatracs. Or I could stay beefy with the Uberturbines and slap some Michelins on it like folks in this thread (though they make DWSs in 295/35 and 265/40 so I’d probably lean that direction). Or of course I could get some dedicated winter wheels but that seems insane in LA.
Think I’d do okay in some moderate snow driving even with the massive wheels? All the A/S tires are M+S rated so I technically wouldn’t have to chain up in r2 conditions. Would it be a slip ‘n’ slide or would I have some traction?
I could downsize to a 19/20” wheel and get some solid do-it-all tires like DWS06s or even some Quatracs. Or I could stay beefy with the Uberturbines and slap some Michelins on it like folks in this thread (though they make DWSs in 295/35 and 265/40 so I’d probably lean that direction). Or of course I could get some dedicated winter wheels but that seems insane in LA.
Think I’d do okay in some moderate snow driving even with the massive wheels? All the A/S tires are M+S rated so I technically wouldn’t have to chain up in r2 conditions. Would it be a slip ‘n’ slide or would I have some traction?
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