is a 255/40/18 square setup on 18x9.5 et35 possible on a 07 e92 RWD?

NW 335i · 02-02-2015, 12:16 AM

I have searched but can't really find the info.

I have found several people running 255/40 17 square setups on e92s but 17s look pretty small. I am liking the meaty sidewalls though.

Is a 255/40 18 square setup possible???
I'm thinking a 18x9.5 et35 if possible.

I have 19s currently which I love the look of but I am thinking of changing up the look and feel of the car and being able to rotate front to back would be a nice bonus.
Thanks all

m9bm · 02-02-2015, 12:13 PM

As a data point, I'm running 19x9 ET 25 all around. 245/35/19 rubber.
12MM spacers in the rear as well.

My rear fenders are rolled and the liner is cut. Without passengers, I get light rubbing when going too fast over bumps. With passengers in the back I get heavy rubbing over driveways and bumps.

My car is essentially a 2 seater now

chris@strutmonkey · 02-10-2015, 07:14 PM

Obviously, they will fit in the back. The possible problem is the fronts. I run 245-40-18 on et35 rims in the front and they do not rub anywhere. However, I would not dare try 255-40-18. Its really close with 245s. I think you'd be ok not rubbing the body/fender. However, you could very well rub the strut perch. In addition, you will likely rub the plastic inner fender lining when you turn the wheel. If you did 255-35, you would at least avoid the inner fender lining problem. It may come down to the brand/model of tire you buy since they 255s differ.

02-02-2015, 12:16 AM	#1
NW 335i Private First Class 54 Rep 185 Posts Drives: 335i 6MT Join Date: Mar 2014 Location: Pac NW iTrader: (2)	is a 255/40/18 square setup on 18x9.5 et35 possible on a 07 e92 RWD? I have searched but can't really find the info. I have found several people running 255/40 17 square setups on e92s but 17s look pretty small. I am liking the meaty sidewalls though. Is a 255/40 18 square setup possible??? I'm thinking a 18x9.5 et35 if possible. I have 19s currently which I love the look of but I am thinking of changing up the look and feel of the car and being able to rotate front to back would be a nice bonus. Thanks all
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02-02-2015, 12:13 PM	#2
m9bm Bad Driver 58 Rep 392 Posts Drives: 2010 E90 335d fake M-Sport Join Date: Sep 2013 Location: Bay Area, CA iTrader: (10)	As a data point, I'm running 19x9 ET 25 all around. 245/35/19 rubber. 12MM spacers in the rear as well. My rear fenders are rolled and the liner is cut. Without passengers, I get light rubbing when going too fast over bumps. With passengers in the back I get heavy rubbing over driveways and bumps. My car is essentially a 2 seater now __________________ 2010 Space Gray 335d
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02-10-2015, 07:14 PM	#3
chris@strutmonkey Banned 127 Rep 245 Posts Drives: 2007 BMW 335i Join Date: Dec 2009 Location: Northern Virginia iTrader: (0)	Obviously, they will fit in the back. The possible problem is the fronts. I run 245-40-18 on et35 rims in the front and they do not rub anywhere. However, I would not dare try 255-40-18. Its really close with 245s. I think you'd be ok not rubbing the body/fender. However, you could very well rub the strut perch. In addition, you will likely rub the plastic inner fender lining when you turn the wheel. If you did 255-35, you would at least avoid the inner fender lining problem. It may come down to the brand/model of tire you buy since they 255s differ.
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