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06-16-2018, 09:18 PM | #1 |
e90noob
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10mm spacer on front okay?
I just came over from f30 to e90 M3
So please excuse the noob question Can I fit a 10mm spacer in the front without any issue? For the f30, 10mm in front was not recommended because of the hub lip length or something to that effect Is there any restriction on spacer sizing? I threw on 5mm in front and 12mm in rear for now The 5mm left very little hub lip distance
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06-16-2018, 09:57 PM | #2 |
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Back when I was shopping spacers the interwebs (this forum) taught/told me that a 10mm just does not safely work on our cars. Due to the hubcentric-ness of it (made that word up).
Someone is going to comment after me that they run a 10mm no problem, but do you really want to risk it? |
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06-17-2018, 10:06 AM | #4 |
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Yes, but just get a hub-centric 12.5.
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06-17-2018, 07:16 PM | #5 |
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Drives: 'E46 M3 Race Car, '23 X7
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10mm works for the most part. It's hard to explain but I have come accross some wheels without much of a hub chamfer that didn't allow it to seat fully. They work with most wheels and I use them all the time.
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'04 M3 - Fall Line Motorsports Built Race Car - S65 swap, Dry Sump, Bosch Stand-Alone ECU, Drenth Sequential Trans, MCS 3-Way, Flossmann Wide Body, Brembo Motorsports Brakes, Drexler LSD, BBS E88 Etc. INSTAGRAM - @Slicer_M |
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07-08-2018, 04:19 PM | #6 |
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The short answer is that a 10mm spacer doesn't always leave enough room for the vehicle’s hub to fully seat within the spacer, which is why we do not produce a 10mm spacer.
The long answer is that even on two identical cars, the hub lip height is typically exactly 10mm, but can vary by as much as 1.5mm. If the vehicle’s hub lip is taller than 10mm, that is to say taller than the spacer itself, this leaves no room for the spacer’s hubcentric lip to be attached to the mounting surface. This can prevent the spacer from seating flat against the hub, and will cause the spacer to “float,” even by half a millimeter. As you can imagine, when torquing down the wheel this causes the spacer to bow, and will ultimately cause wheel stud/bolt failure which can result in severe vehicle damage or injury. Other manufacturers do produce 10mm spacers, and they often clear without issues. Most drivers seeking a 10mm spacer feel that the extra 2mm is well-worth the peace of mind in eliminating the possibility of an improper seat, and we’ve found that there is rarely a case where a 10mm spacer allows a wheel to clear perfectly, and a 12mm doesn’t. Check out our visual representation below: -Matt
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