Michelin Pilot Super Sport N0 – 255/40 ZR20 (101Y) XL TL is an Ultra High Performance summer tyre developed specifically to meet Porsche original-equipment requirements for extreme high-speed stability, precise steering response, and strong dry-road grip. Derived from endurance-racing technology, it features an asymmetric tread pattern engineered to maintain a stable contact patch under heavy acceleration, braking, and cornering loads. Wide circumferential grooves assist with efficient water evacuation, improving wet-road stability at elevated speeds. Reinforced outer shoulder blocks enhance lateral grip and steering precision, while the XL construction provides the structural strength required for high-powered Porsche applications. The Porsche N0 homologation confirms full compatibility with Porsche chassis tuning, suspension geometry, and electronic stability systems.