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View Full Version : Interesting tidbit on tirerack.com


MJFX328
03-16-2006, 10:47 PM
Quoted from tr.com

For example: BMW has combined 235/40R17 sized tires on 17x7.5" rims (which are 0.5" less than the narrowest 8.0" wide rim listed for the size) on certain M3 models

From this article: http://www.tirerack.com/tires/tiretech/tirespecskey.jsp#rimwidthrange

What are they referring to?
Chris Huff
03-17-2006, 10:45 AM
What are they referring to?

The 1995 M3 had 7.5x17 wheels on all four corners wearing 235/40-ZR17 tires.
MJFX328
03-17-2006, 07:13 PM
So why did they do that to the tires? I always thought the wider the better... thats interesting
Mr. Maboomba
03-18-2006, 07:52 PM
They saved money by building in narrow wheels and still squeezed on thick rubber so performance didn't go down.