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      11-09-2012, 05:23 PM   #18
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Drives: 11 E90 M3 Individual
Join Date: Mar 2006
Location: Wichita, KS

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2004 BMW M3  [4.50]
2011 BMW E90 M3  [5.00]
2013 BMW 328i  [5.00]
Originally Posted by M3SQRD View Post
HRE uses a smaller wheel hub chamfer than OEM and other wheels so there is > 2 mm of hub engagement with a 5 mm spacer.
Even then that's not a lot of material. Just went through a class at the track this past weekend about fatigue and parts breaking. I would imagine that as you have less contact between the inside of the wheel and hub lip that the load is transferred to the studs/lug bolts. Given the experiment we witnessed...the life of the wheel fasteners is greatly compromised.

I ran a 5mm space for awhile but I had a 3mm hub extender.
2015 F34 328iX GT Glacier Silver
2011 E90 M3 Monte Carlo Blue
2004 E46 M3 Imola Red