GLE Class (W166) Produced 2015-2019

Will a wide tire on narrow wheel?

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Old Feb 17, 2025 | 09:41 PM
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W166 GLE63s AMG
Will a wide tire on narrow wheel?

Sorry if I've missed it if there is a thread, but I've looked around and I couldn't find any threads that answered or were related to my question: Has anyone ever tried putting a 285 wide tire on a 9" wide wheel?

I'm wanting to put 285/40/20 on a 20"x9". A lot of resources and just from being in the industry in the past, I was always told 265 wide on a 9" was max. Any thoughts?
I found a thread where people were putting 285's on 9" wide wheels but those are much lower profile than I'm wanting (285/35 or 285/30)

Has anyone also run a staggered set on the 63 SUV? There's a set of ADV1's I'm eyeing in 22's, but the variance on the rolling diameter on the tires is too large for my liking: 295/30/22 front, 325/25/22 rear (fearing damage to diffs and t-case)
Has anyone experimented at all?

TIA
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Old Feb 17, 2025 | 10:32 PM
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I ran 305/40/22's on a 9.5" wheel for over a decade with no issues.
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Old Feb 18, 2025 | 12:24 AM
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Originally Posted by BlownV8
I ran 305/40/22's on a 9.5" wheel for over a decade with no issues.
Great to know, thank you!
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Old Feb 18, 2025 | 06:54 AM
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There are charts out there that provide the "recommended" maximums and minimums.
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Old Feb 18, 2025 | 07:04 AM
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Every tire is spec'd with its range of compatible wheel widths. A tire shop won't install a tire on an incompatible wheel.
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Old Feb 18, 2025 | 02:50 PM
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Originally Posted by John Ha
There are charts out there that provide the "recommended" maximums and minimums.
I understand, and like I said in my initial post: There are a lot of resources (including charts on Google) that don't state that 285 would fit on a 9" wide wheel
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Old Feb 18, 2025 | 02:51 PM
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Originally Posted by streborx
Every tire is spec'd with its range of compatible wheel widths. A tire shop won't install a tire on an incompatible wheel.
That's not necessarily true. I used to be a tech, and when I did tires we did what customers requested as long as they signed a waiver/release. It wasn't so much putting wider tires on a more narrow wheel, but stretching narrow tires onto wider wheels. There are shops that also won't tell customers things like how tires have their range of widths to safely be mounted on.
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Old Feb 18, 2025 | 06:40 PM
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Originally Posted by PotatoMage
That's not necessarily true. I used to be a tech, and when I did tires we did what customers requested as long as they signed a waiver/release. It wasn't so much putting wider tires on a more narrow wheel, but stretching narrow tires onto wider wheels. There are shops that also won't tell customers things like how tires have their range of widths to safely be mounted on.
Things have changed since you were a tech. Tire shops won't even install non-OE size tires now, waiver or not.
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Old Feb 18, 2025 | 06:43 PM
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Originally Posted by PotatoMage
I understand, and like I said in my initial post: There are a lot of resources (including charts on Google) that don't state that 285 would fit on a 9" wide wheel
As I said in my earlier post, check the tire spec. You'll find taller sidewall tires have a broader wheel width compatibility than short sidewall tires.
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Old Feb 19, 2025 | 06:19 AM
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go to tirerack.com
Find tire size you want and click on it.
then read specs for the size you are interested in.
It will show allowable wheel widths and other good info.

Not all tire manufacturers allow the same widths for the same tires size.

info for a michelin 285/40/20 - Scroll down and click on SPEC tab
Michelin Pilot Sport 4 | 285/40R20 | Tire Rack

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Old Feb 19, 2025 | 03:56 PM
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Originally Posted by ygmn
go to tirerack.com
Find tire size you want and click on it.
then read specs for the size you are interested in.
It will show allowable wheel widths and other good info.

Not all tire manufacturers allow the same widths for the same tires size.

info for a michelin 285/40/20 - Scroll down and click on SPEC tab
Michelin Pilot Sport 4 | 285/40R20 | Tire Rack
I'm aware of this tool from TireRack. The problem is that there are multiple sources and they all don't say the same thing all the time. And my question was if a 285 wide tire would fit on a 9" wide wheel. Someone above answered that they've been running 305 on a 9.5" for years with no issues which makes the tire rack specs inaccurate. They're all general guidelines, not "You must follow these sizes"
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Old Feb 19, 2025 | 03:57 PM
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Originally Posted by streborx
Things have changed since you were a tech. Tire shops won't even install non-OE size tires now, waiver or not.
This is good to know. The shops where I live will still do shady things if enough money is paid
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Old Feb 19, 2025 | 03:59 PM
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Originally Posted by streborx
As I said in my earlier post, check the tire spec. You'll find taller sidewall tires have a broader wheel width compatibility than short sidewall tires.
Besides the general guideline resources, where can I find specific mounting information about specific tires? I'm wanting to mount a 285/40 R20 Nokian Hakkapeliitta 10 onto 20" x 9" ET40 wheels. I know winter tires tend to be wider than summer tires with the same size, but it shouldn't be by that much
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Old Feb 19, 2025 | 04:15 PM
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Originally Posted by PotatoMage
I'm aware of this tool from TireRack. The problem is that there are multiple sources and they all don't say the same thing all the time. And my question was if a 285 wide tire would fit on a 9" wide wheel. Someone above answered that they've been running 305 on a 9.5" for years with no issues which makes the tire rack specs inaccurate. They're all general guidelines, not "You must follow these sizes"
You seem to be seeking a forum consensus that tire manufacturer specs can be ignored -- that all you need to do is find a tire shop who will do anything for a buck. Guidelines or not, if you slap a tire on a wheel whose width is outside the manufacturer's spec'd range, you can probably say goodbye to the tire warranty. And if the tire peels off the wheel resulting in a loss of vehicle control, likely the accident investigation team will trace the cause. If you're determined to stuff as much rubber as you can fit into your wheel wells, buy a set of compatible wheels to complete the package.
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Old Feb 19, 2025 | 04:21 PM
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Originally Posted by streborx
You seem to be seeking a forum consensus that tire manufacturer specs can be ignored -- that all you need to do is find a tire shop who will do anything for a buck. Guidelines or not, if you slap a tire on a wheel whose width is outside the manufacturer's spec'd range, you can probably say goodbye to the tire warranty. And if the tire peels off the wheel resulting in a loss of vehicle control, likely the accident investigation team will trace the cause. If you're determined to stuff as much rubber as you can fit into your wheel wells, buy a set of compatible wheels to complete the package.
That's not what I'm looking for. I asked if someone has had experience with putting a 285 wide tire on a 9" wide wheel. All you had to say is yes or no, or not comment at all but here we are. The wheels I have for winters are HRE FF11's. I already had them for a different vehicle and they fit my GLE, just different tire size. I'm not going to spend another $12k just because I want 285's. If you don't have an answer, then stop responding. I'm not going to argue with randos when the initial inquiry is super simple and all you had to do was answer like the person who said they were running 305's on 9.5" wheels for years. I know about ranges for tire sizes and what is safe. Like you know, I was in the trade and was a tech. The only reason I asked is for safety and if anyone else knew better.
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Old Feb 19, 2025 | 04:22 PM
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Originally Posted by streborx
You seem to be seeking a forum consensus that tire manufacturer specs can be ignored -- that all you need to do is find a tire shop who will do anything for a buck. Guidelines or not, if you slap a tire on a wheel whose width is outside the manufacturer's spec'd range, you can probably say goodbye to the tire warranty. And if the tire peels off the wheel resulting in a loss of vehicle control, likely the accident investigation team will trace the cause. If you're determined to stuff as much rubber as you can fit into your wheel wells, buy a set of compatible wheels to complete the package.
And you didn't even answer my question. Have a good life
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Old Feb 19, 2025 | 04:24 PM
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Originally Posted by PotatoMage
And you didn't even answer my question. Have a good life
If you don't like the answers you're receiving, then stop asking and do as you wish.
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Old Feb 19, 2025 | 04:25 PM
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Originally Posted by streborx
If you don't like the answers you're receiving, then stop asking and do as you wish.
You didn't answer my question, there was only 1 person on this thread that actually answered my question
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Old Feb 20, 2025 | 02:12 AM
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go to NOKIAN website and read specs for the tire and size you are interested in.
NT_Hakkapeliitta R5_SUV_Info_Sheet_August_2022.pdf

says rim width range 9.5-11"

Never trust the internet.

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