Toyo M647- Position Drive. When you need a premium driving tire for those long haul trips - whether steady local work, regional, or farther down the road, put some Toyo M647 tires on your rig. These dependable, durable tires are made of all the right stuff. A highly rigid shoulder design supports even and consistent wear, and the e-balance profile retention technology and high stiffness bead combine to give the tires an enhanced casing profile. The Toyo M647 tires are designed to reduce the belt edge area strain and also strain in the turn-up area in the bead. You will also find that the e-balance profile supports and maintains a uniform, flatter tread radius. With a tread depth of 30/32", even pressure and contact are maintained with the road surface. The Toyo M647 offers durability and enhanced retread ability superior to the competition.