Wheel spacers: Bulldog vs. Square

Budge · 03-07-2011, 10:03 AM

I want to get some spacers for the stock wheels on my 2009 M3 sedan. After measuring, it looks like I could use 12mm and 15mm (which I read somewhere is called "bulldog"). However, I have read that a lot of people prefer to go with a square configuration, with all four corners having the same sized spacer.

What are the pros and cons for each? Is it purely aesthetics? Does one produce faster tire wear or better handling?

aus · 03-07-2011, 10:22 AM

Most peole go 15 front and 12 rear.

tom @ eas · 03-07-2011, 11:21 AM

Quote:

Originally Posted by Budge

I want to get some spacers for the stock wheels on my 2009 M3 sedan. After measuring, it looks like I could use 12mm and 15mm (which I read somewhere is called "bulldog"). However, I have read that a lot of people prefer to go with a square configuration, with all four corners having the same sized spacer.

What are the pros and cons for each? Is it purely aesthetics? Does one produce faster tire wear or better handling?

The 15mm/18mm spacer combo is the fitment in which we've coined "Bulldog" stance. Most choose the 12mm/15mm combo as aus stated above to err on the conservative side.

While spacers do widen the M3s track width (by 1" or wider depending on fitment), it is mostly chosen for aesthetics.

Macht Schnell wheel spacer reference thread
http://www.m3post.com/forums/showthread.php?t=262054

Lots of examples can be seen in the above thread.

03-07-2011, 10:03 AM	#1
Budge Professional Trophy Husband 25 Rep 150 Posts Drives: '09 M3 Sedan DCT Join Date: Dec 2010 Location: Dallas, TX iTrader: (0)	Wheel spacers: Bulldog vs. Square I want to get some spacers for the stock wheels on my 2009 M3 sedan. After measuring, it looks like I could use 12mm and 15mm (which I read somewhere is called "bulldog"). However, I have read that a lot of people prefer to go with a square configuration, with all four corners having the same sized spacer. What are the pros and cons for each? Is it purely aesthetics? Does one produce faster tire wear or better handling?
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03-07-2011, 10:22 AM	#2
aus Major General 892 Rep 9,032 Posts Drives: Odysse Join Date: Jul 2005 Location: Seal Beach, CA iTrader: (10)	Most peole go 15 front and 12 rear. __________________ Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires."
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