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      12-29-2009, 06:38 PM   #14
ben@tirerack
M3Post Supporting Vendor
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Drives: 740i
Join Date: Mar 2008
Location: South Bend, IN

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Hi Guys, I am back in the office after my Christmas vacation, and thanks for bringing this to my attention.

That wheel is built to be hubcentric on the M3. It should have a 72.56mm centerbore. If anyone who is having an issue with vibration could get a micrometer measurement of the inner bore (ignore any chamfer or bevel, measure where it is smooth) and let me know, I would be interested.

If the micrometer does not read 100ths of a mm, it should measure out to either 72.5 or 72.6 depending on the calibration.

I have sent out a ton of these wheels, and have seen very few issues with vibration, but I definitely want to find out if there are any irregularities.
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I have accepted a new position at Tire Rack and am no longer in the sales department. gary@tirerack.com is available to assist with M3 questions.
Appreciate 0