CLA 45 AMG (C117) 2013 to 2018

Wider Rubber

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Old 05-25-2014, 08:11 PM
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2019 GT3 RS, 2017 M3 30 Jahre
Wider Rubber

I'm ordering new wheels soon and I'm seeing that most aftermarket setups have stuck with the OEM 235 widths. Any reason why?

I'm going with an 18x8.5 or 18x9 wheel and was going to either put 245's or 255's all around (I'm leaning towards the 245 on the 8.5).

Any reason why people haven't put wider rubber? I think the car would benefit a bit from it.

Thanks
Old 05-25-2014, 09:48 PM
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Mercedes SL63 AMG; Mercedes E63 AMG S 4matic; Mercedes C43 AMG; Mercedes S Class, Mercedes GLK
I'm using 8.5" wheels for my winter setup with no issue - but standard sized tires

I had a set of 18 x 8.5 oem AMG rims from one of my other vehicles that I've used for my winter set up, but I used the standard width tires.

No issues with clearance with the rims. I have the 19 x 8 wheels for summer use, but they also come standard with 235 tires. Sorry doesn't really answer your question on tires, but wider wheels work ok as a starting point.

You may want to play around a little bit with the width offset calculator, located here: https://mbworld.org/forums/tire_rim_calculator.php

I played around a little bit with it moving from 235 to 245 to 255 while keeping and then reducing the aspect ratio from 40 to 35 and couldn't keep the same overall diameter. It was off by 1.3% - 2.3% so would throw your speedometer off by that much I believe?

James
Old 05-27-2014, 03:07 AM
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let us know how it goes if you go wide

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