Anyone Running Larger Tires On OEM wheels
Thread Starter
Joined: Mar 2018
Posts: 1,410
Likes: 233
From: Socal and Norcal
MY17 S63AMG - MBUSA Buyback. MY16 SL63 - Sold MY19 W213 E63s. 2020 W213 E63s Wagon
Anyone Running Larger Tires On OEM wheels
As the title states, I am thinking about installing larger tires ( PS4s 275/35/20 and 305/30/20 ) on OEM wheels? Pros and cons? Photos would be great if you have this setup. Thank you.
MBWorld Fanatic!
Joined: Dec 2013
Posts: 2,394
Likes: 239
E63
Thread Starter
Joined: Mar 2018
Posts: 1,410
Likes: 233
From: Socal and Norcal
MY17 S63AMG - MBUSA Buyback. MY16 SL63 - Sold MY19 W213 E63s. 2020 W213 E63s Wagon
MBWorld Fanatic!
Joined: Dec 2013
Posts: 2,394
Likes: 239
E63
MBWorld Fanatic!
Joined: Dec 2013
Posts: 2,394
Likes: 239
E63
I doubt that minor of a change will cause any damage. Even changing to winter wheels and tires will result in a larger change (between front and rear) than this
265/35/20 vs 275/35/20 has an overall diameter change of 3.5mm between them (1.75mm radius change)
265/35/20 vs 275/35/20 has an overall diameter change of 3.5mm between them (1.75mm radius change)
Out Of Control!!
Joined: Jun 2004
Posts: 13,799
Likes: 3,228
2014 E63S; AMS 100 octane ECU dyno tune; EDOK TCU tune; BB intakes; sprintbooster
Last edited by PeterUbers; May 5, 2022 at 10:48 PM.
Trending Topics
Thread Starter
Joined: Mar 2018
Posts: 1,410
Likes: 233
From: Socal and Norcal
MY17 S63AMG - MBUSA Buyback. MY16 SL63 - Sold MY19 W213 E63s. 2020 W213 E63s Wagon
Do you think there would be any problems running 275/35/20 front and 305/30/20 on stock OEM wheels ( 20x9.5 front and 20x10.5 rear ) and would the car being lowered jeopardize this setup? Many thanks for your help.
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
MBWorld Fanatic!
Joined: Dec 2013
Posts: 2,394
Likes: 239
E63
If I do go with larger tires in the rear in the future, I will get rid of my spacers.
Now in the front, you can go wider than 275/35/20 with no issues. I have that plus a 15mm spacer and its still clears no problem. I could go 20mm spacer to be honest.
On an unrelated note: I have detected a stability issue with my 275/35/20 plus 15mm spacer. I ordered 10mm spacers and waiting to see whether it helps.
The stability problems only happen under WOT as the speed builds. The car is fine as long as you are going very very straight. If you turn a slight bit over 40-50mph under WOT, it wants to swing like crazy to one side of the other. Seems very unstable and squirly. I am thinking it might be airflow issues since a larger chuck of tire is exposed to the wind forming around the front bumper with those spacers. It only got this way after I went with larger tires.
Thread Starter
Joined: Mar 2018
Posts: 1,410
Likes: 233
From: Socal and Norcal
MY17 S63AMG - MBUSA Buyback. MY16 SL63 - Sold MY19 W213 E63s. 2020 W213 E63s Wagon
I do not believe there will be any issues. However, I could not run that because of my 10mm spacer in the rear. I am at the limits of what looks good and does not stick out with the stock wheel/tire and a 10mm spacer in the rear.
If I do go with larger tires in the rear in the future, I will get rid of my spacers.
Now in the front, you can go wider than 275/35/20 with no issues. I have that plus a 15mm spacer and its still clears no problem. I could go 20mm spacer to be honest.
On an unrelated note: I have detected a stability issue with my 275/35/20 plus 15mm spacer. I ordered 10mm spacers and waiting to see whether it helps.
The stability problems only happen under WOT as the speed builds. The car is fine as long as you are going very very straight. If you turn a slight bit over 40-50mph under WOT, it wants to swing like crazy to one side of the other. Seems very unstable and squirly. I am thinking it might be airflow issues since a larger chuck of tire is exposed to the wind forming around the front bumper with those spacers. It only got this way after I went with larger tires.
If I do go with larger tires in the rear in the future, I will get rid of my spacers.
Now in the front, you can go wider than 275/35/20 with no issues. I have that plus a 15mm spacer and its still clears no problem. I could go 20mm spacer to be honest.
On an unrelated note: I have detected a stability issue with my 275/35/20 plus 15mm spacer. I ordered 10mm spacers and waiting to see whether it helps.
The stability problems only happen under WOT as the speed builds. The car is fine as long as you are going very very straight. If you turn a slight bit over 40-50mph under WOT, it wants to swing like crazy to one side of the other. Seems very unstable and squirly. I am thinking it might be airflow issues since a larger chuck of tire is exposed to the wind forming around the front bumper with those spacers. It only got this way after I went with larger tires.
Maybe removing your spacers for your front 275/35/20?
BTW, what PSI are you running with your wheels?
Thank you.
MBWorld Fanatic!
Joined: Dec 2013
Posts: 2,394
Likes: 239
E63
You are right, I shod have done that. I drove around with stock wheel and tire combo with the spacers for 8 months without an issue so I didn't even think about that when I went with bigger tires.
305/30/20 with the 275/35/20 and no spacers would have been the best combo. Though I may have done 285/35/20 in the front.
Unfortunately the front tires wear out faster than the rear in this car so I'll just keep going smaller on the front spacers till I get it more stable .
I will attach some.pics of what it looks like with the 15F/10R spacers
305/30/20 with the 275/35/20 and no spacers would have been the best combo. Though I may have done 285/35/20 in the front.
Unfortunately the front tires wear out faster than the rear in this car so I'll just keep going smaller on the front spacers till I get it more stable .
I will attach some.pics of what it looks like with the 15F/10R spacers
Thread Starter
Joined: Mar 2018
Posts: 1,410
Likes: 233
From: Socal and Norcal
MY17 S63AMG - MBUSA Buyback. MY16 SL63 - Sold MY19 W213 E63s. 2020 W213 E63s Wagon
You are right, I shod have done that. I drove around with stock wheel and tire combo with the spacers for 8 months without an issue so I didn't even think about that when I went with bigger tires.
305/30/20 with the 275/35/20 and no spacers would have been the best combo. Though I may have done 285/35/20 in the front.
Unfortunately the front tires wear out faster than the rear in this car so I'll just keep going smaller on the front spacers till I get it more stable .
I will attach some.pics of what it looks like with the 15F/10R spacers
305/30/20 with the 275/35/20 and no spacers would have been the best combo. Though I may have done 285/35/20 in the front.
Unfortunately the front tires wear out faster than the rear in this car so I'll just keep going smaller on the front spacers till I get it more stable .
I will attach some.pics of what it looks like with the 15F/10R spacers
Junior Member
Joined: Oct 2019
Posts: 60
Likes: 15
From: Ontario, Canada
'20 E63S
I understand that these wider tires may look better, but how much heavier are they and how much more sidewall flex is there during hard/spirited cornering?
These would be my concerns.
These would be my concerns.
MBWorld Fanatic!
Joined: Dec 2013
Posts: 2,394
Likes: 239
E63
My Pirellis definitely was wearing out faster in the front than the rear, but my Michelins seem to wear about the same
I am not lowered so I cannot help there.
There was a very obnoxious dude on here who got a company to make new upper control arms to counter excessive camber on the front. If it lasted (ie didn't break like his first attempt), it will be a good option. But it only helps the front not the rear.
MBWorld Fanatic!
Joined: Dec 2013
Posts: 2,394
Likes: 239
E63
Which reminds me, someone asked about tire pressures. I typically run 40psi cold in the rear and 38psi cold in the front. Why more pressure in the rear? Less squat, car seems easier to control during transitions, and I found it to be more stable at much higher illegal speeds with that bias.
I used to be big on higher pressure in the fronts until I went wider in the front.
Thread Starter
Joined: Mar 2018
Posts: 1,410
Likes: 233
From: Socal and Norcal
MY17 S63AMG - MBUSA Buyback. MY16 SL63 - Sold MY19 W213 E63s. 2020 W213 E63s Wagon
I guess I should have added, with a consistent spirited launching lol.
My Pirellis definitely was wearing out faster in the front than the rear, but my Michelins seem to wear about the same
I am not lowered so I cannot help there.
There was a very obnoxious dude on here who got a company to make new upper control arms to counter excessive camber on the front. If it lasted (ie didn't break like his first attempt), it will be a good option. But it only helps the front not the rear.
My Pirellis definitely was wearing out faster in the front than the rear, but my Michelins seem to wear about the same
I am not lowered so I cannot help there.
There was a very obnoxious dude on here who got a company to make new upper control arms to counter excessive camber on the front. If it lasted (ie didn't break like his first attempt), it will be a good option. But it only helps the front not the rear.
Thread Starter
Joined: Mar 2018
Posts: 1,410
Likes: 233
From: Socal and Norcal
MY17 S63AMG - MBUSA Buyback. MY16 SL63 - Sold MY19 W213 E63s. 2020 W213 E63s Wagon
Definitey heavier, definitely squishier. Better for drag racing, not so sure about the track. On the street, bump up the tire presure
Which reminds me, someone asked about tire pressures. I typically run 40psi cold in the rear and 38psi cold in the front. Why more pressure in the rear? Less squat, car seems easier to control during transitions, and I found it to be more stable at much higher illegal speeds with that bias.
I used to be big on higher pressure in the fronts until I went wider in the front.
Which reminds me, someone asked about tire pressures. I typically run 40psi cold in the rear and 38psi cold in the front. Why more pressure in the rear? Less squat, car seems easier to control during transitions, and I found it to be more stable at much higher illegal speeds with that bias.
I used to be big on higher pressure in the fronts until I went wider in the front.
Senior Member
Joined: Feb 2021
Posts: 304
Likes: 75
From: New England
21 E63s wagon
This looks great. How does the set up look from the back view? Do the rear tires look noticeably wider than the 295s? This is something I would love to do on my car too. This car should have wider tires from factory imo. Thanks for starting this tread!
Thread Starter
Joined: Mar 2018
Posts: 1,410
Likes: 233
From: Socal and Norcal
MY17 S63AMG - MBUSA Buyback. MY16 SL63 - Sold MY19 W213 E63s. 2020 W213 E63s Wagon
MBWorld Fanatic!
Joined: Dec 2013
Posts: 2,394
Likes: 239
E63
Both MY17 W222 S63 and W213 E63s wagon came with Pirellis Pzero and really don’t like them as they are softer compound than the PS4S and feel they wear out faster. If my guess is right about the obnoxious dude your talking about, he likes testing the limits in the canyons and did read through the long post about the disappointment about Kmac!?
Member
Joined: Jul 2023
Posts: 85
Likes: 13
2018 E63S Wagon
MBWorld Fanatic!
Joined: Mar 2011
Posts: 2,496
Likes: 1,574
From: Canada
2023 E63S Wagon
On an unrelated note: I have detected a stability issue with my 275/35/20 plus 15mm spacer. I ordered 10mm spacers and waiting to see whether it helps.
The stability problems only happen under WOT as the speed builds. The car is fine as long as you are going very very straight. If you turn a slight bit over 40-50mph under WOT, it wants to swing like crazy to one side of the other. Seems very unstable and squirly. I am thinking it might be airflow issues since a larger chuck of tire is exposed to the wind forming around the front bumper with those spacers. It only got this way after I went with larger tires.
The stability problems only happen under WOT as the speed builds. The car is fine as long as you are going very very straight. If you turn a slight bit over 40-50mph under WOT, it wants to swing like crazy to one side of the other. Seems very unstable and squirly. I am thinking it might be airflow issues since a larger chuck of tire is exposed to the wind forming around the front bumper with those spacers. It only got this way after I went with larger tires.
MBWorld Fanatic!
Joined: Mar 2011
Posts: 2,496
Likes: 1,574
From: Canada
2023 E63S Wagon
And the reason for my question is, I need new front tires and am playing around with the online calculators.
WIth Front 285/35 the Front/Rear ratios are:
295 is 3% smaller
305 is 2.3% smaller
315 is 1.7" smaller which gets back to stockish F/R ratio of 1.7%
So the "perfect" dia would be Front 285/35 and Rear 315/30
Bonus: Ditch the spacers
WIth Front 285/35 the Front/Rear ratios are:
295 is 3% smaller
305 is 2.3% smaller
315 is 1.7" smaller which gets back to stockish F/R ratio of 1.7%
So the "perfect" dia would be Front 285/35 and Rear 315/30
Bonus: Ditch the spacers
Last edited by I.T. Guy; Jul 29, 2025 at 09:18 PM.
