I think Sport 1, 2 and Comfort modes don't affect the ride height, only the stiffness of the shocks

 

I was just about to ask that!

Ok, I'll replace them soon.

 

The most important thing to consider in doing a plus-size wheel fitment is to keep the overall tire diameter as close as possible to the stock tire size.

So on the front of a W211 E55/E63 you have:

18" stock tire size = 245/40/18, 25.72" diameter

19" wheel needs a 245/35/19 tire, 25.75" diameter

20" wheels needs 245/30/20 tire, 25.79" diameter

A 245/35/20 tire has a diameter of 26.75", or over 1" taller than stock. Yeah, it will rub.

The other tire consideration is to make sure you only use tires that have an "XL" load rating. Again, that's what the factory specified, and it's even more important when you're going with an extremely low profile tire like a 30 series. Our cars are heavy; the tire load rating is a safety factor.

 

I HAVE SAME WHEELS AND SAME PROBLEM 245/30/20 IS YOUR BEST BET TO GET RID OF THE PROBLEM THEY ARE RUBBING ON YOUR SUSPENSION ARM BOLT!!!!!!!!!!!

 

Im one of the largest distributors for these wheels and I had them on my E55 with 245/35/20 with absolutely no problems!!! I later on changed to 245/30/20 and had no problems as well. Now I am changing back to 245/35/20 because the ride is wayyyy smoother!!!!

 

That's cuz ur such a gangster, Warren...and you own a donk.

 

sport II lowers the car 10mm

 

LOL!!!! The overall diameter of the 24s on my Buick is like 30"

 

Yea, Sport II does lower the car

 

I put these rims and have 245/35/20 and 275/30/20. I am rubbing all over on my 2002 S500. What is the solution?

 

I have the same set up in the front because of the same reason. The rubbing is only bad when I turn the wheel and have the car in the Sport 2 setting. I'm going to replace the front tires with 245/30/20 sometime soon.

 

Any back tire issues? Mine rub bad in the back specially above 80mph on the freeways.

 

Going with /30 in front and /25 in rear.


These are nice wheels

 

There are tire size calculators all over the internet. Search on google...use...order correct tire size...avoid this.

Seriously though that vendor should have known the tire size closest to factory. Going an inch or more larger in rolling diameter on a car like this is no good especially when you are lowered...at all..or have a suspension that has settings that lower it manually and at 75 mph.

 

DO NOT DRIVE WITH A 245 35 20 up front, If you put the car in the raised setting and look at the top of the tyre you will see how close the tyre is to the thread bolt of the upper arm that conects to the hub (about 2-3mm).

When you use the brakes and go over bumps it pushes up against the bolt, that is why you are getting the line in the middle of the tread. I ground about 5 mm of mine with the dremel and this stopped the problem.

 

Sorry just read this too,,,,,,, basically its a bit of a risk, mine was very bad under breaking........I was worried that the front tyres would grip onto the bolt.

goodluck