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Would it be possible to run 225/40-R18 on a square set up rather than the OEM size 225/45-R18 and 245/40-R18. I've checked the rolling diameter and it is 25.1" compared to the OEM's 26" and 25.7"
Does the 4matic system allow the -3.5% in rolling diameter of all the wheels? I've done a bit of research on multiple forums regarding the difference rolling diameter tolerance between the front and rear but nothing really on smaller tires.
A smaller tire will show your speed as higher than actual, same with miles traveled. What is the reason to go to a shorter small tire? Just use the 225/45 all around, that's what a non-sport car without the staggered wheel option runs.
4matic doesn't care what size they are as long as they are all the same/within 3%.
I bought some aftermarket 18 inch wheels for a good price but they already had new Ingens A1 all season tires 225/40-R18 on them. Thats why I was wondering if I could just run them for now until grab newer tires.
Update: tried them on and didn't have any issues.
Thank you for the replies
05-16-2020, 09:52 PM
C300 with smaller tires?
