I have a set of 315's that I have been having trouble getting balanced for 10,000 miles. First had them static balanced at the local tire shop about 5 times. They tried everything. Then switch to ceramic balancing beads. It helped but didn't solve my vibe which was from 55-75 MPH. Then went to Les Schwab, yarded out the beads and had them balanced on their Road Force machine. Problem solved. Anyone need 40 oz. of ceramic beads?

 

Make a necklace and put it on Ebay.

 

What is a Road Force? And, what makes it so special??

Is it the one that balances the wheels on the vehicle?

 

This explains it better than I can...
http://gsp9700.com/

 

I have to agree, in my last vehicle I had a custom wheel/tire combo and always seemed to have trouble getting them balanced right. One trip to the road force was all it took and it was perfect, after many failed attempts on traditional machines.