M3 Wheel Center Bore

Big Windy · 11-18-2008, 03:54 AM

I've searched a bit, but have not found any definitive confirmation. I am hoping that another member can provide something (maybe a pic of the inside of the OEM rims?) which shows that e92 M3 wheel center bore is 72.5mm

Another member had a problem mounting SE A7s and the BMW Tech said that the reason is because the M3's center bore is actually 72mm. I'm pretty sure that is incorrect, but don't have anything to prove it.

Thanks for the help.

**ben@tirerack** · 11-18-2008, 04:57 PM

The actual hub on the BMW is 72.44mm. It is natural for this to be a few 100ths of a millimeter smaller than the wheel bore, or else the wheel would not go on.

The OE BMW wheels have a centerbore of 72.56mm. The A7 have the same 72.56mm bore. I have recently had one of my technical staff confirm this in response to this question.

graves4r6 · 11-19-2008, 08:03 PM

Quote:

Originally Posted by ben@tirerack

The actual hub on the BMW is 72.44mm. It is natural for this to be a few 100ths of a millimeter smaller than the wheel bore, or else the wheel would not go on.

The OE BMW wheels have a centerbore of 72.56mm. The A7 have the same 72.56mm bore. I have recently had one of my technical staff confirm this in response to this question.

I see you have BBS CH with 19 X 8.5 ET20 and I am wondering if I can put it in the front?

11-18-2008, 03:54 AM	#1
Big Windy Major General 152 Rep 5,124 Posts Drives: None Join Date: Mar 2007 Location: Bay Area iTrader: (0)	M3 Wheel Center Bore I've searched a bit, but have not found any definitive confirmation. I am hoping that another member can provide something (maybe a pic of the inside of the OEM rims?) which shows that e92 M3 wheel center bore is 72.5mm Another member had a problem mounting SE A7s and the BMW Tech said that the reason is because the M3's center bore is actually 72mm. I'm pretty sure that is incorrect, but don't have anything to prove it. Thanks for the help.
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11-18-2008, 04:57 PM	#2
ben@tirerack M3Post Supporting Vendor 87 Rep 964 Posts Drives: 740i Join Date: Mar 2008 Location: South Bend, IN iTrader: (0)	The actual hub on the BMW is 72.44mm. It is natural for this to be a few 100ths of a millimeter smaller than the wheel bore, or else the wheel would not go on. The OE BMW wheels have a centerbore of 72.56mm. The A7 have the same 72.56mm bore. I have recently had one of my technical staff confirm this in response to this question. __________________ _______________________________________________ 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.
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