135i centering ring?

foghat · 06-22-2012, 11:09 AM

Hi,

My user 135i came with a set of winter rims and tires. The previous owner had the dealer swap wheels his past spring. There was a note in the work order saying that centering rings were needed before being installed again next winter.

Any idea what size centering ring I need? Does it depend on the aftermarket wheel? If so, is there any marking I can look for on the wheel that would help determine ring needed? Best place to buy?

Thanks a lot.

Greenkirby21 · 06-22-2012, 11:21 AM

What type of wheels are they? I know my OZ use OZ specific centering ring. Best bet would be to call the place where they sell your wheels(like tire rack) and ask.

bogart · 06-22-2012, 11:59 AM

I just got a set of centering rings for my BBS's from TireRack. The hub is 72.56mm, but they will know that when you tell them what car you have. Then you need to measure the center bore on the wheel. The BBS's had an 82.1mm center bore. Yours will most likely be different. You can also try to call and see if they can tell you by the wheel.

I ended up finding a BBS dealer and called to confirm that's the correct size.

foghat · 06-22-2012, 02:23 PM

Ya. I have no idea what type of wheels they are. Can't find a name/model on them anywhere. Don't have the technology to measure to the tenth of a millimeter, but a good old ruler says about 79mm.

Will try get in touch with the previous owner about brand of wheel.

ptack · 06-22-2012, 04:08 PM

Centering rings can be a royal PIA unless they are fairly thick and not tight. Forgestars F14s come with thin aluminum centering rings and they were so tight that there was little chance they would come off in one piece after a long summer season. Here's a quick and dirty alternative - provided you only need a millimeter or so - electrical tape. Clean off the hub, tightly wrap it in several turns of tape (about 5-6 work for me) and trim off the excess with a knife. You'll know if you did it right if you feel no vibrations. When you need to put the OEM wheels, pull the tape off, clean the hub with a wire brush, put some anti-seize on and you're done.
If you need thicker rings (a couple millimeters) get proper ones from the manufacturer. If you can't figure out who made the wheels post some pics here.

foghat · 06-22-2012, 07:00 PM

I need more than a millimeter by my measurement, from ~79mm down to 72.56 (according to bogart).

Anyways, I managed to figure things out with help from the original owner. Have some on their way from Tirerack.

06-22-2012, 11:09 AM	#1
foghat Captain 59 Rep 913 Posts Drives: 2008 135i Join Date: Jun 2009 Location: Great White North iTrader: (1)	135i centering ring? Hi, My user 135i came with a set of winter rims and tires. The previous owner had the dealer swap wheels his past spring. There was a note in the work order saying that centering rings were needed before being installed again next winter. Any idea what size centering ring I need? Does it depend on the aftermarket wheel? If so, is there any marking I can look for on the wheel that would help determine ring needed? Best place to buy? Thanks a lot.
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06-22-2012, 11:21 AM	#2
Greenkirby21 Vrooom :) 315 Rep 2,602 Posts Drives: C7 Stringray Join Date: Jun 2010 Location: Dream Land iTrader: (1)	What type of wheels are they? I know my OZ use OZ specific centering ring. Best bet would be to call the place where they sell your wheels(like tire rack) and ask. __________________ 2014 C7 Corvette Stringray - Laguna Blue - NPP Exhaust - Competition Seats
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06-22-2012, 11:59 AM	#3
bogart Lieutenant Colonel 117 Rep 1,664 Posts Drives: E82 N55 DCT Join Date: Nov 2010 Location: STL, MO iTrader: (4) Garage List 2011 BMW 135i [7.06]	I just got a set of centering rings for my BBS's from TireRack. The hub is 72.56mm, but they will know that when you tell them what car you have. Then you need to measure the center bore on the wheel. The BBS's had an 82.1mm center bore. Yours will most likely be different. You can also try to call and see if they can tell you by the wheel. I ended up finding a BBS dealer and called to confirm that's the correct size. __________________
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06-22-2012, 02:23 PM	#4
foghat Captain 59 Rep 913 Posts Drives: 2008 135i Join Date: Jun 2009 Location: Great White North iTrader: (1)	Ya. I have no idea what type of wheels they are. Can't find a name/model on them anywhere. Don't have the technology to measure to the tenth of a millimeter, but a good old ruler says about 79mm. Will try get in touch with the previous owner about brand of wheel.
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06-22-2012, 04:08 PM	#5
ptack Brigadier General 269 Rep 4,470 Posts Drives: 135i Join Date: May 2008 Location: NJ iTrader: (0) Garage List 2008 135i [6.50]	Centering rings can be a royal PIA unless they are fairly thick and not tight. Forgestars F14s come with thin aluminum centering rings and they were so tight that there was little chance they would come off in one piece after a long summer season. Here's a quick and dirty alternative - provided you only need a millimeter or so - electrical tape. Clean off the hub, tightly wrap it in several turns of tape (about 5-6 work for me) and trim off the excess with a knife. You'll know if you did it right if you feel no vibrations. When you need to put the OEM wheels, pull the tape off, clean the hub with a wire brush, put some anti-seize on and you're done. If you need thicker rings (a couple millimeters) get proper ones from the manufacturer. If you can't figure out who made the wheels post some pics here. Last edited by ptack; 06-22-2012 at 04:16 PM..
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06-22-2012, 07:00 PM	#6
foghat Captain 59 Rep 913 Posts Drives: 2008 135i Join Date: Jun 2009 Location: Great White North iTrader: (1)	I need more than a millimeter by my measurement, from ~79mm down to 72.56 (according to bogart). Anyways, I managed to figure things out with help from the original owner. Have some on their way from Tirerack.
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