Tire/Wheel Balance ? Bounce ?

[John Kelley]

I found this on a WHEEL/TIRE web site....

"Centerbore relates to the center hole in the wheel that centers the wheel on the hub of the car. Since most wheels are mass produced, they have a large center bore to accommodate several different vehicles. If this is the case, it is recommended that you use a hub ring. Hub rings are hard plastic or metal ring that fits between the wheel and the vehicle. This centers the wheel perfectly on the hub ensuring that there is no run out when the wheel is installed on to the vehicle. Without hub rings it is possible to get vibrations even if the wheel / tire assembly is perfectly balanced."

I remember a Nova at sacramento that had those problems because the wheel didn't "register" on the axle hub !! It was fun to watch but SCARY for the driver ! He got it fixed before he ran again !

[Aubrey N Bruneau]

Well, I drafted up a collar, which has two outer diameters. One to center the wheel, and the other to center the Wilwood brake rotor hub ( yes, it too flopped around on the axle flange ) on the end of the axle.
My machinist made them up out of aluminum.

WHAT DIFFERENCE !!!!!!
just dead on.. you know, just like a factory $3.00 steel wheel fits on !

thanks for the help, guys