I have read tread about vibration if there is no center ring. I have 20" on my 550i. When it get around to 60mph it starts to vibrate. I was wondering if anyone know the size of the center ring to get or a place for me to go to in San Jose, CA. I know the rings themselves are pretty cheap so I want to go to a place that will not take me for a ride.

 

Inner diameter is 72,56mm and outer diameter should be the same as your wheel hub diameter is. My guess is 74,1mm, but you have to check it. Are you sure your rims are not a perfect fit and vibration would appear because of bad balancing, or bent rim?

 

exact same thing happen to me,,the rings solved the problem

 

Hey Schio, check the balancing first like Anzafin mentioned. If you really need hubcentric rings, you can go to California Wheels on Alum Rock and Capitol Ave and they make their own there specific to your car. Should be quicker than waiting around to order them. Or check out my friend's shop, SonicMS in Mountain View. Good luck.

 

Yup, California Wheels has the biggest selection of hub rings in stock. If you dont mind waiting a day or two, I could get them for you, but you have to take a little drive to Mountain View also.

 

thanks for the info, I will try California Wheels first.