How wide can I do?








If you want more tire bulge you can use narrower rims but there are limits for each different tire. 8.5” is close to the narrowest for the factory 20” sizes. Using a narrow rim doesn’t change the tire tread location if the offsets are equal.
I made a spreadsheet when I was looking to go from a 21 to 22” setup…might still have it. It’s tough to find aftermarket wheels with higher offsets so I made a lot of calculations with wheels/offsets/tire sizes.
Maybe someone has actually run a wider setup and can give you their opinion.




If it doesn't open like that, at least you have a good wheel-tire comparator.
https://www.wheel-size.com/calc/?whe....8125in&sr=0in




https://docs.google.com/spreadsheets...HwVF1gm8U/edit




https://docs.google.com/spreadsheets...HwVF1gm8U/edit
I tried the link and it does populate with AMG 53 specs, but it's easier to use on a computer than a phone.
I was looking for a wider tire for the front without changing the stock wheels. Unfortunately, when I found a perfect size on a 305, it turns out that nobody makes that size.
The search continues....
Last edited by mikapen; Dec 4, 2022 at 12:25 PM.








It allows things like suspension clearance (mine is 13/16”) to be entered.
Actually I think you also sent a link when you were fitting Winters.
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It allows things like suspension clearance (mine is 13/16”) to be entered.
Actually I think you also sent a link when you were fitting Winters.
Edit- not impressed with the Michelin CrossClimate tire. Works great until greasy snow or ice. No sipes!
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If you want more tire bulge you can use narrower rims but there are limits for each different tire. 8.5” is close to the narrowest for the factory 20” sizes. Using a narrow rim doesn’t change the tire tread location if the offsets are equal.
I made a spreadsheet when I was looking to go from a 21 to 22” setup…might still have it. It’s tough to find aftermarket wheels with higher offsets so I made a lot of calculations with wheels/offsets/tire sizes.
Maybe someone has actually run a wider setup and can give you their opinion.


