225/40/18 or 235/40/18 on 18x8.5 rims?

jerflash · 01-11-2011, 10:43 AM

i know the 225s fit fine on an 8.5 rim but the 235 fit better. only thing is they are a little taller then stock. i will be running a square setup on my 328xi coupe. what do you guys think is best?

joe

Express · 01-11-2011, 10:44 AM

255

jerflash · 01-11-2011, 10:47 AM

i was thinking that and 255 would be awesome all around. im just worried about fitment in the front and mileage. but i suppose a 255 would offer better rim protection

Express · 01-11-2011, 10:47 AM

you have 8.5 all around?

jerflash · 01-11-2011, 10:53 AM

thats what im going to have when i order my new rims in spring. i would have done the 225 up front if they made the rims i wanted in 18x7.5/8 but they dont

jerflash · 01-11-2011, 11:08 AM

any problems with running 245/40/18 all around? i know at 60 it would read 61-62 but any fitment problems?

Das.Euro · 01-11-2011, 11:08 AM

I have 225s on the front of my car on the 8.5s .. There is a slight stretch on them but they look great and im running a 35 wall on it.

brocklanders · 01-11-2011, 11:33 AM

i had asked this question and the guy from tire rack told me 235/40 is the safe bet, and you may be able to get away with 245/40 depending on the setup, as in offset and suspension. i think if your offset is around 30 or higher you should be fine with a 245.

jerflash · 01-11-2011, 11:45 AM

ya rims im gettin are 18x8.5 et35. i will not be lowering the car ever so the 245s with give me a wider tire and fill the wheel well a bit more...have to think

jerflash · 01-11-2011, 11:56 AM

there is also the 245/35 18. shorter then stock though

VMRWheels · 01-11-2011, 01:53 PM

235/40/18 will work on a 8" wheel without a problem. It will give off a beefier look on a 8.0" wheel and a square look on a 8.5" wheel.

-Charles@VMRWheels

John_01 · 01-11-2011, 04:34 PM

IMO, 235/40/18 is the best fit on 8.5" rims. If you don't like stretch, get the widest fitting brand of 235 tire you can find. Goodyear Eagle F1 or Michelin PS2 are probably good choices.

You could try 255/35/18, but personally I wouldn't. It might rub on the front of the E92 depending on the brand and I don't think you will get much benefit from the extra width. There's a risk it will make the steering feel heavier and make the tramlining more noticible.

cb4 · 01-11-2011, 06:10 PM

Quote:

Originally Posted by jerflash

i was thinking that and 255 would be awesome all around. im just worried about fitment in the front and mileage. but i suppose a 255 would offer better rim protection

This is what I run and it works fine. I think I will try 255/35 next. I think I can work it with et37. Will probably be tire model dependent.

cb4 · 01-11-2011, 06:12 PM

Quote:

Originally Posted by cb4

Quote:

Originally Posted by jerflash

i was thinking that and 255 would be awesome all around. im just worried about fitment in the front and mileage. but i suppose a 255 would offer better rim protection

This is what I run and it works fine. I think I will try 255/35 next. I think I can work it with et37. Will probably be tire model dependent.

Sorry I meant to quote the 245/40 comment. iPhone

neilvosko · 07-07-2012, 01:30 PM

has anybody tried the 255/40 on a 18x8.5 ET35 square setup????

Gary@TireRack · 07-09-2012, 08:27 AM

I would lean towards 235/40R18 for slightly more width/height.

Tires http://www.tirerack.com/a.jsp?a=AH8&...ires/index.jsp

01-11-2011, 10:43 AM	#1
jerflash Lieutenant 39 Rep 522 Posts Drives: 2007 E92 328xi/2002 ws6 Join Date: Jan 2011 Location: long island, ny iTrader: (0)	225/40/18 or 235/40/18 on 18x8.5 rims? i know the 225s fit fine on an 8.5 rim but the 235 fit better. only thing is they are a little taller then stock. i will be running a square setup on my 328xi coupe. what do you guys think is best? joe
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01-11-2011, 10:44 AM	#2
Express Major General 393 Rep 8,688 Posts Drives: 06 330i Join Date: Dec 2008 Location: The Promise Land iTrader: (17) Garage List 2006 BMW 330i [8.30]	255
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01-11-2011, 10:47 AM	#3
jerflash Lieutenant 39 Rep 522 Posts Drives: 2007 E92 328xi/2002 ws6 Join Date: Jan 2011 Location: long island, ny iTrader: (0)	i was thinking that and 255 would be awesome all around. im just worried about fitment in the front and mileage. but i suppose a 255 would offer better rim protection
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01-11-2011, 10:47 AM	#4
Express Major General 393 Rep 8,688 Posts Drives: 06 330i Join Date: Dec 2008 Location: The Promise Land iTrader: (17) Garage List 2006 BMW 330i [8.30]	you have 8.5 all around?
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01-11-2011, 10:53 AM	#5
jerflash Lieutenant 39 Rep 522 Posts Drives: 2007 E92 328xi/2002 ws6 Join Date: Jan 2011 Location: long island, ny iTrader: (0)	thats what im going to have when i order my new rims in spring. i would have done the 225 up front if they made the rims i wanted in 18x7.5/8 but they dont
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01-11-2011, 11:08 AM	#6
jerflash Lieutenant 39 Rep 522 Posts Drives: 2007 E92 328xi/2002 ws6 Join Date: Jan 2011 Location: long island, ny iTrader: (0)	any problems with running 245/40/18 all around? i know at 60 it would read 61-62 but any fitment problems?
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01-11-2011, 11:08 AM	#7
Das.Euro Banned 9 Rep 432 Posts Drives: 07 328XI- Montego Blue Join Date: Oct 2010 Location: NNJ iTrader: (3)	I have 225s on the front of my car on the 8.5s .. There is a slight stretch on them but they look great and im running a 35 wall on it.
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01-11-2011, 11:33 AM	#8
brocklanders Major 110 Rep 1,428 Posts Drives: the uno, mineral white Join Date: Mar 2010 Location: houston iTrader: (3) Garage List 06 325 [0.00]	i had asked this question and the guy from tire rack told me 235/40 is the safe bet, and you may be able to get away with 245/40 depending on the setup, as in offset and suspension. i think if your offset is around 30 or higher you should be fine with a 245.
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01-11-2011, 11:45 AM	#9
jerflash Lieutenant 39 Rep 522 Posts Drives: 2007 E92 328xi/2002 ws6 Join Date: Jan 2011 Location: long island, ny iTrader: (0)	ya rims im gettin are 18x8.5 et35. i will not be lowering the car ever so the 245s with give me a wider tire and fill the wheel well a bit more...have to think
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01-11-2011, 11:56 AM	#10
jerflash Lieutenant 39 Rep 522 Posts Drives: 2007 E92 328xi/2002 ws6 Join Date: Jan 2011 Location: long island, ny iTrader: (0)	there is also the 245/35 18. shorter then stock though
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01-11-2011, 01:53 PM	#11
VMRWheels BimmerPost Supporting Vendor 2133 Rep 25,972 Posts Drives: BMW Join Date: Jun 2007 Location: Anaheim, CA iTrader: (4) Garage List 2013 BMW M3 [10.00] 2015 BMW M4 [0.00] 2013 BMW F30 [0.00] 2014 BMW F22 [0.00] 2013 BMW F06 [0.00]	235/40/18 will work on a 8" wheel without a problem. It will give off a beefier look on a 8.0" wheel and a square look on a 8.5" wheel. -Charles@VMRWheels __________________ VMR\|Wheels \| 714.442.7916 \| sales@velocitymotoring.com \| www.velocitymotoring.com \| facebook \| flickr \| Instagram
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01-11-2011, 04:34 PM	#12
John_01 Colonel 241 Rep 2,643 Posts Drives: E90 325i, E82 135i Join Date: Mar 2009 Location: Sydney, Australia iTrader: (0)	IMO, 235/40/18 is the best fit on 8.5" rims. If you don't like stretch, get the widest fitting brand of 235 tire you can find. Goodyear Eagle F1 or Michelin PS2 are probably good choices. You could try 255/35/18, but personally I wouldn't. It might rub on the front of the E92 depending on the brand and I don't think you will get much benefit from the extra width. There's a risk it will make the steering feel heavier and make the tramlining more noticible.
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07-07-2012, 01:30 PM	#15
neilvosko Lieutenant Colonel 97 Rep 1,529 Posts Drives: 335i e92 FBO Join Date: Dec 2011 Location: miami iTrader: (19)	has anybody tried the 255/40 on a 18x8.5 ET35 square setup????
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07-09-2012, 08:27 AM	#16
Gary@TireRack Moderator 376 Rep 4,742 Posts Drives: Formerly 1995 M3 Join Date: Oct 2006 Location: South Bend, IN, Tire Rack HQ iTrader: (2)	I would lean towards 235/40R18 for slightly more width/height. Tires http://www.tirerack.com/a.jsp?a=AH8&...ires/index.jsp __________________ Gary. Tire and Wheel Forum Moderator. Tire Rack Sales Rep Gary@Tirerack.com http://www.tirerack.com/a.jsp?a=AH8&url=index.jsp Please refer to 'Gary/E90 Post' as your previous contact when you order online to help support this forum.
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