Bad vibrations with M6 rims

Matty C · 06-18-2009, 01:27 PM

I just installed my M6 wheels and I have really bad vibrations. I took it to the shop and the put in rear hub spacers. They stated the front doesn't need any. I still have vibration and had all 4 wheels balanced a second time. Still have the vibration. I did a 4 wheel alignment and the problem continues. Wondering if anyone has had the same problem? Vibrations start at about 80 mph and last to 120 mph. Responses and suggestions for correcting this would be appreciated.

Thanks!
Matt

bkz4mc · 06-18-2009, 03:09 PM

I'd check the balancing again ( maybe try a different shop ) or maybe the rims are bent... did you get them new or used ?

The HACK · 06-18-2009, 04:11 PM

Find out from whoever you bought the rims from what the hub size(s) are.

onelove · 06-19-2009, 10:06 AM

Definitely check the hub size and measure it vs the hub size of the vehicle. I remember a few years back the Volk TE37s where listed as being hubcentric, however they where really a few mm off which caused a noticable vibration. Got hub centric rings to correct it and everything was smooth from then on.

bmwzrrrr · 07-02-2009, 02:22 AM

+1

Rick Hunter · 07-02-2009, 11:18 AM

Assuming you have the MiRó Style 346 Wheels (M6 Reps), and they're all properly balanced and properly bolted onto the car (i.e. proper torque, star-patterned tightened, etc.), then the problem is most likely due to the hub size for your rear wheels. They are hubcentric to the 5er & 7er but you'll need hub rings for the Z4. You can find them on eBay for cheap ~$12 for a set of 4)

I've never had issues with my reps, but that's because I have the rings on the rears. FWIW the Hub Centric Rings I needed was *72.56mm -74.1mm*

Good Luck

06-18-2009, 01:27 PM	#1
Matty C First Lieutenant 20 Rep 324 Posts Drives: 2007 Z4 M Roadster, 2006 M3 Join Date: May 2009 Location: Bodensee iTrader: (0)	Bad vibrations with M6 rims I just installed my M6 wheels and I have really bad vibrations. I took it to the shop and the put in rear hub spacers. They stated the front doesn't need any. I still have vibration and had all 4 wheels balanced a second time. Still have the vibration. I did a 4 wheel alignment and the problem continues. Wondering if anyone has had the same problem? Vibrations start at about 80 mph and last to 120 mph. Responses and suggestions for correcting this would be appreciated. Thanks! Matt
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06-18-2009, 03:09 PM	#2
bkz4mc Mars Bitches... Red Rocks ! 15 Rep 344 Posts Drives: '07 Z4 M Coupe Join Date: Nov 2008 Location: Trapped in a glass case of emotion ! iTrader: (0)	I'd check the balancing again ( maybe try a different shop ) or maybe the rims are bent... did you get them new or used ?
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06-18-2009, 04:11 PM	#3
The HACK Midlife Crises Racing Silent but Deadly Class 1821 Rep 5,337 Posts Drives: 2006 MZ4C, 2021 Tesla Model 3 Join Date: Oct 2007 Location: Welcome to Jamaica have a nice day iTrader: (1)	Find out from whoever you bought the rims from what the hub size(s) are.
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06-19-2009, 10:06 AM	#4
onelove Track Head 24 Rep 503 Posts Drives: 07 Z4M Join Date: Jan 2008 Location: Orlando,FL iTrader: (0)	Definitely check the hub size and measure it vs the hub size of the vehicle. I remember a few years back the Volk TE37s where listed as being hubcentric, however they where really a few mm off which caused a noticable vibration. Got hub centric rings to correct it and everything was smooth from then on.
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07-02-2009, 02:22 AM	#5
bmwzrrrr Private 1 Rep 59 Posts Drives: bmw z4 3.0 and 325it Join Date: Jun 2009 Location: san jose iTrader: (0)	+1
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07-02-2009, 11:18 AM	#6
Rick Hunter Skull Squadron Leader 304 Rep 2,031 Posts Drives: '07 M Coupé & '16 435xi GCoupé Join Date: May 2007 Location: The Emerald City iTrader: (20)	Assuming you have the MiRó Style 346 Wheels (M6 Reps), and they're all properly balanced and properly bolted onto the car (i.e. proper torque, star-patterned tightened, etc.), then the problem is most likely due to the hub size for your rear wheels. They are hubcentric to the 5er & 7er but you'll need hub rings for the Z4. You can find them on eBay for cheap ~$12 for a set of 4) I've never had issues with my reps, but that's because I have the rings on the rears. FWIW the Hub Centric Rings I needed was 72.56mm -74.1mm Good Luck __________________
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