Michelin Pilot Sport 4 ZP – 245/40 ZR20 99Y XL TL is an Ultra High Performance summer run-flat tyre engineered for sporty passenger vehicles that require precise handling, high-speed stability, and extended mobility after a puncture. It incorporates Michelin’s Zero Pressure (ZP) technology, allowing limited driving at reduced speed following a loss of air pressure. The advanced asymmetric tread pattern features wide circumferential grooves that promote efficient water evacuation and consistent wet braking performance. Michelin’s Dynamic Response belt construction enhances steering accuracy by maintaining a stable contact patch during high-speed driving. Reinforced outer shoulder blocks improve cornering control, while the XL construction supports higher load capacity and structural rigidity for large-diameter wheel applications.