BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > E90/E92 M3 Technical Topics > Wheels + Tires Sponsored by The Tire Rack
  TireRack

KEEP M3POST ALIVE BY DOING YOUR TIRERACK SHOPPING FROM THIS BANNER LINK!
Post Reply
 
Thread Tools Search this Thread
      09-01-2012, 05:52 AM   #1
Elldon
Private
 
Drives: M3 E90 Jerez Black
Join Date: Jul 2012
Location: Czech Republic

Posts: 50
iTrader: (0)

Garage List
2010 BMW E90 M3  [0.00]
What wheels & tires will I fit on my stock M3?

Greetings wise forum members! :-)

Here is my situation: I would like to buy a set of track wheels and tires so that I can visit the local tracks 3-6 times a year. I don't need anything super-racing. I just want wheels that will withstand the heat and I have a chance to buy used track tires of hopefully all sizes.

With my previous car, I used to keep my old summer tires stored and when I went to track, I had them put onto my wheels, which meant the wheels and tires got damaged every time they did the switch and I also had to drive with the slicks to the track circuit. This could mean a nice fine had the police seen me.

That is why I would love to have a spare wheels with tires that I can throw into my trunk and just change them right at the track.

Right now, my BMW M3 E90 has stock 18" 265/245 wheels, stock brakes - everything stock.



Could you, please, advise on what wheel size I will be able to fit without having to do any modifications? As I said, I only want to arrive at the track, put them on and drive. I don't want them to be too expensive and I don't mind them used.

Thanks a lot :-)
Elldon is offline  
0
Reply With Quote
      09-01-2012, 05:55 AM   #2
CanAutM3
Colonel
 
CanAutM3's Avatar
 
Drives: 2008 E92 M3 SS2 DCT
Join Date: Jan 2012
Location: Montreal

Posts: 2,708
iTrader: (0)

Garage List
2008 BMW M3  [0.00]
2006 Audi S4  [0.00]
You could a little, there' s ton of info already...


18x10 ET25 wheels all around is what I use for the track.
CanAutM3 is offline   Canada
0
Reply With Quote
      09-01-2012, 06:22 AM   #3
Elldon
Private
 
Drives: M3 E90 Jerez Black
Join Date: Jul 2012
Location: Czech Republic

Posts: 50
iTrader: (0)

Garage List
2010 BMW E90 M3  [0.00]
There is a ton of M3 Wheels threads, most of them with wheels I would never be able to fit - been following them for last 14 days. Could you please explain what "18x10 ET25" means? Only understand the first number :-) Thanks
Elldon is offline  
0
Reply With Quote
      09-01-2012, 06:45 AM   #4
LarThaL
Colonel
 
LarThaL's Avatar
 
Drives: 2011 M3
Join Date: Apr 2011
Location: West Springfield, MA

Posts: 2,374
iTrader: (0)

APEX wheels for the track. ARC8 or EC7.

18x9.5 ET22with 265/35/18 front

18x10.5 ET27 with 285/35/18 rear

You can also go 18x10 all around with 275/35/18
__________________
Precision tool: 2011 BMW ///M3
Sledgehammer: 2014 Audi S6

LarThaL is offline  
0
Reply With Quote
      09-01-2012, 07:42 AM   #5
Elldon
Private
 
Drives: M3 E90 Jerez Black
Join Date: Jul 2012
Location: Czech Republic

Posts: 50
iTrader: (0)

Garage List
2010 BMW E90 M3  [0.00]
Quote:
Originally Posted by LarThaL View Post
APEX wheels for the track. ARC8 or EC7.

18x9.5 ET22with 265/35/18 front

18x10.5 ET27 with 285/35/18 rear

You can also go 18x10 all around with 275/35/18
Thank you! Do you think I won't be able to fit any 19"s? Is it even good to try to fit them for track or will 18" be better?
Elldon is offline  
0
Reply With Quote
      09-01-2012, 09:35 AM   #6
MKE_M3
Lieutenant Colonel
 
MKE_M3's Avatar
 
Drives: 2011 e90 M3
Join Date: Feb 2009
Location: Milwaukee, WI

Posts: 1,585
iTrader: (0)

Generally speaking, 18's are better for the track since they will be lighter.
__________________
MKE_M3 is offline   United_States
0
Reply With Quote
      09-01-2012, 09:36 AM   #7
MKE_M3
Lieutenant Colonel
 
MKE_M3's Avatar
 
Drives: 2011 e90 M3
Join Date: Feb 2009
Location: Milwaukee, WI

Posts: 1,585
iTrader: (0)

Quote:
Originally Posted by Elldon View Post
There is a ton of M3 Wheels threads, most of them with wheels I would never be able to fit - been following them for last 14 days. Could you please explain what "18x10 ET25" means? Only understand the first number :-) Thanks
First number is wheel diameter, second is wheel width, third is the offset
__________________
MKE_M3 is offline   United_States
0
Reply With Quote
      09-01-2012, 09:43 AM   #8
M3 Esq
Major
 
M3 Esq's Avatar
 
Drives: Fast
Join Date: Aug 2007
Location: CT

Posts: 1,419
iTrader: (3)

Garage List
18s are better also because there are more ( and cheaper) tire options available. I would run a square setup personally, that way you can rotate them.
M3 Esq is offline   United_States
0
Reply With Quote
      09-01-2012, 11:28 AM   #9
Elldon
Private
 
Drives: M3 E90 Jerez Black
Join Date: Jul 2012
Location: Czech Republic

Posts: 50
iTrader: (0)

Garage List
2010 BMW E90 M3  [0.00]
Thank you all for your feedback. I have one more question -
"18x10.5 ET27 with 285/35/18 rear"
How do I find out that 285/35/18 will fit 18x10.5 ET27? I guess the height (35) doesn't matter since it is not wheel dependent. The size (18) is clear. But the width - 285mm tires to 10.5inch wheels? 10.5 is said to be wheel width. If that is in inches, 10.5 inch is something around 266,7 mm. How come 285mm width tires would fit that?

Also, what does offset influence? Anything about the tires or just how much the wheel will stick out of the bumper?

Sorry for noob questions, just never came across this problem before :-)
Elldon is offline  
0
Reply With Quote
      09-01-2012, 11:54 AM   #10
CanAutM3
Colonel
 
CanAutM3's Avatar
 
Drives: 2008 E92 M3 SS2 DCT
Join Date: Jan 2012
Location: Montreal

Posts: 2,708
iTrader: (0)

Garage List
2008 BMW M3  [0.00]
2006 Audi S4  [0.00]
Quote:
Originally Posted by Elldon View Post
Thank you all for your feedback. I have one more question -
"18x10.5 ET27 with 285/35/18 rear"
How do I find out that 285/35/18 will fit 18x10.5 ET27? I guess the height (35) doesn't matter since it is not wheel dependent. The size (18) is clear. But the width - 285mm tires to 10.5inch wheels? 10.5 is said to be wheel width. If that is in inches, 10.5 inch is something around 266,7 mm. How come 285mm width tires would fit that?

Also, what does offset influence? Anything about the tires or just how much the wheel will stick out of the bumper?

Sorry for noob questions, just never came across this problem before :-)
The tire width is the ultimate with of the tire, not the tire/wheel interface width. The latter is flexible, so you can fit a given width tire on different width wheels. In general terms, the wider the wheel the more rigid the tire side walls will be (for a given tire width).

Offset is important as you want the wheel center to be aligned with the hub bearing as much as possible. Further, it will have an impact on how much the wheel sticks in or out to avoid rubs.

I would also recommend a square setup as it allows you to rotate the tires to balance wear and makes the car nice and neutral in terms of handling.
CanAutM3 is offline   Canada
0
Reply With Quote
      09-01-2012, 04:13 PM   #11
VMcV3y
Captain
 
VMcV3y's Avatar
 
Drives: 2012 M3 Cabriolet
Join Date: Feb 2012
Location: Houston, Texas

Posts: 853
iTrader: (0)

Garage List
CanAutM3
M3 Esq.
jdemetry
LarThaL

I appreciate the answers, too. Thanks.

(There were a couple of things that I hadn't figured out because ten billion of the posts on the Internet assume a basic knowledge.)


.
__________________
2012 ///M3 Cabriolet; Le Mans Blue Metallic.

. . . .Munich . . . >. . . .Houston

When one wants a cabriolet, is there really any other choice than an M3? No. No, there's not.
VMcV3y is offline   United_States
0
Reply With Quote
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 01:06 AM.




m3post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST