I'm about to replace the rear tires on my 2005 SLK55 and would like to go with a wider tire on the stock rim. What is the widest tire I can put on the stock rims without screwing up the odometer/traction control/active handling? Thanks.

What are the stock sizes for wheels and tires?

The stock tires are: Front - 225/40 - 18; Rears - 245/35 - 18
The wheels are 18 inch in diameter, but I don't know their width.

I would personally go with a set of 285/30s. That will keep the speedometer really close to factory. The other things wont be affected by wider tires.

My bro has a SLK55 and the widest he could wear.......255-30-19
and he had a little rubber touching....but nth to worry

Those 255's will change the speedo reading though. I would think the 285's would fit just fine because its only an inch and a half wider than stock. If Paris says they dont fit, they might not. You could always go with a spacer to prevent rubbing.

the stock wheels are 7.5 inches in the front and 8.5 inches in the rear side.

i'm pretty sure it shouldn't go over 265's...
i have seen a few people wearing 265's on their SLKs

the best setup is 265s for the rear as it will accomidate it without rubbing and other issues.

Thanks for the info guys. I've decided to put 265s on the rears.

I've done 265

You can fit 265's for sure. Someone w/ slk55 had some 265's yokohama track tires on it with no rubbing. - I drove it, hooked nicely the tires looked like they were off a sportback awesome tread. Im a MB tech fyi

​​​​​​Hi just wanted to help jou can tell your bro he can go and put some 265/30/18 on they fit perfectly and makes the car faster from 0 to 100
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