- Smart sidewall design improves handling by way off a firm sidewall in the lower portion, while the upper sidewall is more flexible for enhanced comfort. - Continuous Center Rib with Variable Round Grooves provide a stable on-center feel, while improving wet traction during cornering. - Four Wide Circumferential Grooves combat hydroplaning by quickly and effectively evacuating water. - Tapered Outer Shoulder Blocks soften the contact between individual tread blocks to combat uneven tire wear and increase ride comfort.