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-   -   After market wheels BMW 740IL (http://www.bimmerfest.com/forums/showthread.php?t=593360)

rafarin003 01-11-2012 11:50 AM

After market wheels BMW 740IL
 
Howdy,
I'm quite new here, I have been a BMW owner for 7 years now; my first one was a 525i 1995 then I bought a 740 Il 1999 5 years ago. Last year I bought a 2007 X5, I currently own both. Last year I decided to upgrade the 740 by purchasing a new set of flashy wheels to replace the factory ones;however, I kept getting terrible vibrations while driving mostly when I'm doing 45 mph. Despite the fact that I loved the wheels I had to remove them and go back to the original factory ones. I recently saw a set of 18" after market rims on EBAY which I like very much. Has anyone ever experienced such vibrations with the steering wheel after putting some after market wheels?
Any pointers will be greatly appreciated before I make a final decision about those awesome wheels.

Sent from my MOTWX435KT using Bimmer

BigBoy740il 10-05-2012 07:40 PM

First off, your problem can be caused by a multitude of things. Bent rims, bad tires, worn suspension parts or non-hub centric rims. Step one, get your wheels high speed balanced. This checks the tires and rims. Next check to see if your rims have hub centric rings. These are metal or plastic inserts which reduce the rims inner bore to tightly fit the BMW's 72.1mm hub. Without them, your rims might mount off center and cause vibration. Finally, check your front suspension parts for looseness. Check the lower control arms, thrust arms, tie rod ends, and steering link for looseness. Repair anything problems found and have the car aligned.

Big Boyz with Bad Toyz

rafarin003 10-05-2012 09:28 PM

Thx for your input, I have already resolved that issue. You're absolutely right,the root cause of the vibration was the fact that I didn't have any hub rings. After installing one set of rings everything become smooth and steady.

BimmerBro 10-10-2012 08:13 PM

Interesting..I have a set of aftermarket wheels and i have experienced the vibrations. I have all the wheels trued and checked for balance, but I don't recall anyone mentioning anything about these hub centric rings. I've actually taken the wheels off and put my factory wheels back and the vibration is gone. Where do you get these plastic or metal rings?

thanks

rafarin003 10-11-2012 10:52 AM

The hub rings are very cheap you can get the set for as low as $50 on ebay. Yes they will stop the vibration.

BimmerBro 10-14-2012 07:07 PM

Thanks. Anyone have a pic of what these rings look like? Just want to make sure I'm getting the right thing.

Sobek 10-14-2012 09:01 PM

If you're using aftermarket wheels with a 74.1mm bore size (the most common really) then these are the hub centric rings you want;

http://i.ebayimg.com/00/$%28KGrHqUOK...Fm4r!~~_12.JPG

http://www.ebay.com.au/itm/261036601276

Don't go plastic or cheapskate 'High school metal shop' aluminium from some yum cha brand... Get the good stuff, ie; the link above. They'll last forever and they have a conical shaped top lip that will fit almost all BMW rims beautifully. I've got another set on their way to me right now for some Style 95's I'm putting on.


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