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Originally Posted by dmnknightomega6
!?!?!? hubrings?!?!?!?
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If the new rims have a larger hub size a hubring can be fitted that will match the car being fitted with the rims. If the wheel's hub opening is smaller the wheel can be machined to the correct size. Here's a little tech article from TireRack;
"Centerbore
The centerbore of a wheel is the size of the machined hole on the back of the wheel that centers the wheel properly on the hub of the car. This hole is machined to exactly match the hub so the wheels are precisely positioned, minimizing the chance of a vibration. With a hubcentric wheel, the lug hardware will not be supporting the weight of the vehicle, all they really do is press the wheel against the hub of the car. Some wheels use high quality, forged centering rings that lock into place in the back of the wheel. This is an acceptable alternative.
If you have non-hubcentric (lugcentric) wheels, they should be torqued correctly while the vehicle is still off of the ground so they center properly. The weight of the vehicle can push the wheel off-center slightly while you're tightening them down if left on the ground."
As you can see, a forged ring will fulfill the weightbearing issue, where the delrin rings mentioned, and lightweight aluminum ones I've seen will not. However, if the vibration and proper fit vs vibration are your real concern there you are. I have no suggestions however on where to obtain them.
Glenn