Quote:
Originally Posted by sayemthree
$30 for the rings.
what are the rings? you mean spacer?
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No, just centering rings. The X6 wheel has a slightly larger hub bore than the E90 (74.1 mm v. 72.56). The wheels on BMWs are hub-centric, meaning that they use the hub to center the wheels. Using the ring allows the wheels to easily center properly, though the bolts do all the clamping.
They are little pieces of plastic; since they don't carry any load, that's fine.