Hubcentric Rings?
 

Is anyone using these on any of there after market wheels? I have an 84 RX-7 and was woundering what size would I need for those?

bump

i will be using on mine. we call it spiggot ring locator over here. its wheel manufacturer specific.

I have run across the dimensions somewhere, have no idea where it was. If nothing else, take a stock wheel to the wheel supplier and let them measure them. The wheel supplier may already have the dimensions in thier data base.

You should never pass more than 6mm or you'll get a vibration between 50-60 mph.

3mm is a norm so I would def go for those. The larger 6mm ones are for wider wheels with spacers.

Hope this helps somewhat...