Starting with the inner layer of the tire you have a specially constructed Compliance Cushion and the Stress Equilibrium Casing. Then in the center you have a variable-pitch tread design. Now the outer layering consists of Interlocking “S” sipes, Wide, continuous shoulder ribs that help stabilize the tread during cornering, Wide, serrated center grooves and staggered lateral grooves, An alternating shoulder profile, and a Symmetrical rib and shoulder design.