20inch tire help for 2014 CLS 550

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Old Apr 22, 2023 | 03:53 AM
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RageMode's Avatar
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2014 CLS 550 RWD
20inch tire help for 2014 CLS 550

Hello,
This is my second post regarding tire size.
I have bought wheels which the sizes are 20x8.5J in front and 20x9.5J in the back.
The tires I have bought are 255/35/20 for front and 285/30/20 for back.
However, there is a big problem for the front tires.
I went to the tire shop, and when they put on the 255/35/20 tires on the wheels, the tire was hitting the air suspension rubber…
The guy told me to get a 255/30 for front and it won’t hit the suspension.
But I have seen many people rock 255/35/20 for front and 285/30/20 for back.
I want to make this work because if my front tires won’t work, I have to change both front and back.
Also, both wheel offsets were 25et in front and back.
Do you recommend me to increase the offset in front by buying spacers or not?
Or another option would be changing the tires for front to 255/30/20 and for the back 285/30/20, the same aspect ratio for both front and back…
Is this a good idea or not?
Please let me know.
Any help would be appreciated.

Last edited by RageMode; Apr 22, 2023 at 03:56 AM.
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Old Apr 29, 2023 | 12:02 AM
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alxchoice's Avatar
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cls 550
The right tire size for 20'' wheels for cls would be, front 255/30/20 and back 285/25/20, so you can maintain the factory rolling set up, i also just recently bought new rims and tires, and i am trying to find a place for installation, some tire shops asking me for $250 for 4 wheels which i find quite expensive..... is anybody have any idea how much it will cost the installation of 4 new rims to 4 new tires?
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