Hey, I work for Yokohama Tire Corp. in Salem VA. We build passenger car & light truck tires and I know for a fact that some of our tires get better than 60,000 miles of wear. If we can do this on auto & truck tires why can't someone build motorcycle tires that will run 20,000 miles ??? I will soon be replacing the Dunlop wide whites on my 98 Road King and they have less than 10,000 miles! Just curious!