Dyna Beads?

[Outkast]

I have used them in motorcycles, has anyone used them in their car tires?

 

[briankaplan]

Never heard of them. What do they do? For balance?

 

[Outkast]

Ya they are just little plastic BB's about the size of air soft ammo and you drop em through the valve stem into the tire a little at a time untill balance is achieved at about 30mph.