Ultra-high-performance handling that doesn't quit when the weather turns. Built with Hankook's motorsport technology, the Ventus S1 evo Z AS uses 3D sipes that keep tread blocks rigid under acceleration for confident grip on dry roads, wet roads and light snow. Expanding lateral grooves cut air-pumping noise on the inside while wider outer grooves keep wet performance secure, and extended shoulder blocks maximize road contact for sharp, precise cornering. An aramid hybrid reinforcement belt holds the tire's shape at high speed.