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Originally Posted by MiCkEy
Sheeeeesh. Here is a head scratcher.
I took the wheels off yet again (probably the 12th time) to check the center rings (I seem to have bigger biceps because of all the heavy lifting, jacking the truck (no pun) than when I was single and lonely) and even though the center rings did not have any AFS marking on them, I found a little white stickie that says "74.1mm/72.56mm". What does this mean? Do I have the wrong center ring? Why the two numbers? the center rings seem to be in not so good shape so I have taken them off. Are aluminum ones better than the plastic ones?
thanks all. I guess I am getting close to solving the mystery ( i hope)
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Hi Mickey,
The AFS wheels you have will fit other Bmws as well!I say this in order to explain to you what the numbers on the centre rings mean.74.1 is the mesurement on the centre hub of the AFS Wheels ,72.6 is the measurement of the X5s wheel hub,thus AFS supplied you with those rings to give you a perfect fitment.
For example and M5 has a 74.1 wheel hub fitting,so the AFS wheels for it will not need the centre rings.It will be a straight bolt-on.
In my experience with Wheels,mostwheel manufactrures(even Replicas ) usually supply direct fitment wheels for BMW because of the small difference between 74.1 and 72.6 wheel hubs and the weight of the wheel itself may cause vibrations as in your case.All the wheels I have sold here for X5s are all direct fitment and hence never had vibration issues related to wheel fitting.
Maybe you call call AFS and ask them to exchange your wheels for a direct 72.6mm fitment!
If your centre rings are not in good condition ,get new ones!I dont think that by getting aluminium rings will resolve your problem but if you get new rings ,its better to go for the aluminium ones.