I have mounted and ridden MC tires without any balancing, and hate to admit it but never noticed any problems. I think this is why balance beads are marketed to the MC community, they can hype them up and whether they work or not they get rave reviews. Something about the dynamics of MC and truck tires vs car tires. Google "balance beads for" and motorcycles and trucks come up. Interesting, the much larger automobile market doesn't show up first.