285/30/20's on 42mm offset 20x10
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Joined: Feb 2007
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285/30/20's on 42mm offset 20x10
I been told that 275's are the largest tire that will fit the rear. I know this is not true since I have seen plenty of E's with 285, mostly 25 series. Before I spend hard earned cash, does anyone know that 285/30's will fit with no issues. I test fitted the wheel and there seems to be at least 1/4 to 1/2 inch clearance on the inside...Fronts are 20x8.5 with 35mm offset and I was planning on 245/35's...
Out Of Control!!
Joined: Sep 2004
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From: San Diego
2015 S212
I'd be most careful with keeping the overall diameter consistent. If not, you WILL have ESP issues under any spirited runs. If you only care about looks, I'd say your setup is close if not right.
I'm running 275/35/18 on the front and 295/30/18 on the rear with no rubbing at all. It is close, but no rubbing at all and no rolled fenders. It at least proves that the setup will work, IF you get the offset right.
I'm running 275/35/18 on the front and 295/30/18 on the rear with no rubbing at all. It is close, but no rubbing at all and no rolled fenders. It at least proves that the setup will work, IF you get the offset right.
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Joined: Mar 2006
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I'd be most careful with keeping the overall diameter consistent. If not, you WILL have ESP issues under any spirited runs. If you only care about looks, I'd say your setup is close if not right.
I'm running 275/35/18 on the front and 295/30/18 on the rear with no rubbing at all. It is close, but no rubbing at all and no rolled fenders. It at least proves that the setup will work, IF you get the offset right.
I'm running 275/35/18 on the front and 295/30/18 on the rear with no rubbing at all. It is close, but no rubbing at all and no rolled fenders. It at least proves that the setup will work, IF you get the offset right.
In all honesty, I'd consider changing your front tires to 255/35/18. The ride height is much closer to the 295/30/18. If my math is correct, your front tires are over 3/10th of an inch taller in the front. Forgive my ignorance--don't E55s have issues if the ride heights are significantly different?
(V owners would have stabilitrac issues if we used a similar setup)
Last edited by Luna.; Mar 27, 2007 at 01:15 PM.
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Out Of Control!!
Joined: Sep 2004
Posts: 13,394
Likes: 6
From: San Diego
2015 S212
Out Of Control!!
Joined: Sep 2004
Posts: 13,394
Likes: 6
From: San Diego
2015 S212
BAH--if you're going with 275/35/18 in the front, you need to somehow figure out a way to get 315/30/18s to work in the rear. That's a nice combo & the ride height is damn near identical.
In all honesty, I'd consider changing your front tires to 255/35/18. The ride height is much closer to the 295/30/18. If my math is correct, your front tires are over 3/10th of an inch taller in the front. Forgive my ignorance--don't E55s have issues if the ride heights are significantly different?
(V owners would have stabilitrac issues if we used a similar setup)
In all honesty, I'd consider changing your front tires to 255/35/18. The ride height is much closer to the 295/30/18. If my math is correct, your front tires are over 3/10th of an inch taller in the front. Forgive my ignorance--don't E55s have issues if the ride heights are significantly different?
(V owners would have stabilitrac issues if we used a similar setup)
As for your point about going even larger in the rear, it is well taken. however, the emphasis on my project has been to NOT require modifications to suspension points or fenders. After all, how can i talk a wheel manufacturer into making a custom set when they will not be able to market it? as it is, whomever ends up working with me will have the first and only setup that runs 275s up front and 295s in the rear. Currently, only CCW specs to 295s and even they require specific tires. I wish that they would try a slightly more aggressive offset as I believe it would solve their issues.
In the future, I plan to roll the fenders and go with 285 fronts and 305 rears, but that is more when the car is making huge power and has rebuilt arms under it..
Out Of Control!!
Joined: Sep 2004
Posts: 13,394
Likes: 6
From: San Diego
2015 S212
Out Of Control!!
Joined: Sep 2004
Posts: 13,394
Likes: 6
From: San Diego
2015 S212
In general, I would NOT go over 5% more or less in diameter than the OEM setup. You never said what your intent is? Is it solely looks? Any spirited driving? if so, don't do it, since ESP will be kicking in very fast. If all looks, then do it.
Thread Starter
Junior Member
Joined: Feb 2007
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First, I must say, that the tires are not for an AMG car, they are for a E320. So, with that said, spirited driving? Sure, jut not with AMG power. This car is used for commuting 10 - 50 miles per day to work. My weekends are reserved for my 550hp Denali. It's mostly because I would like a slightly taller sidewall to fill the fender gap and for an easier ride. The car is lowered (or will be this week) on H&R's. I really want the ties to tuck a little...so if I go with the 25 series I may have to cut 
my H&R's to eliminate the gap.
my H&R's to eliminate the gap.
