161 wheels with 255/40/17 all around?

royalblack888 · 03-19-2011, 09:12 PM

im trying to run the widest tires on stock 161 wheels with sports suspension on a E90. i want to run 255/40/17 on all 4 corners is it possible? i do most of my driving in the city with rough roads so i want to stick with 17s. any input is appreciated

driverman · 03-19-2011, 10:21 PM

I don't know if you can do it, but whether you can or not, I don't think it's a good idea.

The sports package on the E90 is designed to run a staggered setup with 225/45/17 on 8" wheels up front and 255/40/17 on 8.5" wheels in rear. If you go with a square setup, you'll deviate from the setup BMW designed, built and tested under various conditions. You'll undoubtedly change the handling.

Hooy · 03-20-2011, 02:23 AM

I wouldn't run a 255 on an 8" wheel. Unless you get a set of 8.5's for your fronts as well, don't do it.

Gary@TireRack · 03-21-2011, 07:56 AM

Quote:

Originally Posted by Hooy

I wouldn't run a 255 on an 8" wheel. Unless you get a set of 8.5's for your fronts as well, don't do it.

+1

remmib · 03-21-2011, 01:01 PM

Are you talking about four 8.5" wheels or 255 on the 8" front wheels?

rothwem · 03-21-2011, 02:41 PM

Quote:

Originally Posted by driverman

I don't know if you can do it, but whether you can or not, I don't think it's a good idea.

The sports package on the E90 is designed to run a staggered setup with 225/45/17 on 8" wheels up front and 255/40/17 on 8.5" wheels in rear. If you go with a square setup, you'll deviate from the setup BMW designed, built and tested under various conditions. You'll undoubtedly change the handling.

A square setup changes handling for the better. I have two sets of 161's and I run the fronts with all seasons, 17x8's, all around. I have the rears ready for summer tires. I still haven't decided on what size tire yet though. When I do, I'll be running them all around. FWIW, the rear 17x8.5 et 37 with a 255/40R17 runflat fits fine on the front of the e90.

royalblack888 · 03-21-2011, 04:01 PM

i love to hit the corners hard and i find that theres under steer... there are numerous people who run wider tires in the front. thanks for the input tho

Quote:

Originally Posted by driverman

I don't know if you can do it, but whether you can or not, I don't think it's a good idea.

The sports package on the E90 is designed to run a staggered setup with 225/45/17 on 8" wheels up front and 255/40/17 on 8.5" wheels in rear. If you go with a square setup, you'll deviate from the setup BMW designed, built and tested under various conditions. You'll undoubtedly change the handling.

royalblack888 · 03-21-2011, 04:03 PM

cause im wondering i have a older Range Rover and the factory tires are 255/65/16 on 8" rim. thank for your input

Quote:

Originally Posted by Hooy

I wouldn't run a 255 on an 8" wheel. Unless you get a set of 8.5's for your fronts as well, don't do it.

royalblack888 · 03-21-2011, 04:04 PM

Quote:

Originally Posted by msrothwell

A square setup changes handling for the better. I have two sets of 161's and I run the fronts with all seasons, 17x8's, all around. I have the rears ready for summer tires. I still haven't decided on what size tire yet though. When I do, I'll be running them all around. FWIW, the rear 17x8.5 et 37 with a 255/40R17 runflat fits fine on the front of the e90.

royalblack888 · 03-21-2011, 04:05 PM

ive got a E90 328i with Sport package.... im not 100% sure.........

Quote:

Originally Posted by remmib

Are you talking about four 8.5" wheels or 255 on the 8" front wheels?

remmib · 03-22-2011, 11:39 AM

Quote:

Originally Posted by royalblack888

ive got a E90 328i with Sport package.... im not 100% sure.........

I guess you've got the 8" front wheels then.

03-19-2011, 09:12 PM	#1
royalblack888 Private 8 Rep 78 Posts Drives: 2007 AW E90 328 Join Date: Aug 2010 Location: Toronto iTrader: (0)	161 wheels with 255/40/17 all around? im trying to run the widest tires on stock 161 wheels with sports suspension on a E90. i want to run 255/40/17 on all 4 corners is it possible? i do most of my driving in the city with rough roads so i want to stick with 17s. any input is appreciated
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03-19-2011, 10:21 PM	#2
driverman Captain 38 Rep 715 Posts Drives: 2008 328i 6MT - SOLD Join Date: Nov 2008 Location: El Dorado Hills, CA iTrader: (0)	I don't know if you can do it, but whether you can or not, I don't think it's a good idea. The sports package on the E90 is designed to run a staggered setup with 225/45/17 on 8" wheels up front and 255/40/17 on 8.5" wheels in rear. If you go with a square setup, you'll deviate from the setup BMW designed, built and tested under various conditions. You'll undoubtedly change the handling. Last edited by driverman; 03-20-2011 at 06:57 AM..
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03-20-2011, 02:23 AM	#3
Hooy Colonel 205 Rep 2,770 Posts Drives: E92 328i, E92 M3 Join Date: Sep 2009 Location: Houston, TX iTrader: (12) Garage List 2008 E92 328 [5.00]	I wouldn't run a 255 on an 8" wheel. Unless you get a set of 8.5's for your fronts as well, don't do it.
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03-21-2011, 01:01 PM	#5
remmib General 1569 Rep 29,202 Posts Drives: 2013 F10 520d M-Sport Join Date: Feb 2006 Location: Norway iTrader: (0)	Are you talking about four 8.5" wheels or 255 on the 8" front wheels? __________________ F10 520d M-Sport Alpine White \| HRE P43SC 20x9+20x11 \| Michelin PSS 255/35+295/30 \| KW V3 Coilover \| M5 Front Sway Bar + M550d Rear Sway Bar \| 3DDesign Front Lip \| BMW M Performance CF Spoiler \| BMW M Performance Diffuser \| BMW M Performance Black Grills \| BMW M Performance Pedals \|
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