The Pilot Sport 4S is Michelin's Max Performance Summer tire developed in cooperation with some of the most demanding vehicle manufacturers, including Audi, BMW, Mercedes-Benz and Porsche to utilize key technologies engineered during competition in the 24 Hours of Le Mans. It was designed for serious drivers looking to maximize the performance potential of their sports cars, performance sedans and powerful luxury vehicles. The Pilot Sport 4S excels in warm dry and wet conditions.
The asymmetric tread pattern of the Pilot Sport 4S features side-by-side, 24 Hours of Le Mans-derived compounds. The low-void outer shoulder utilizes a new dry-focused hybrid tread rubber for improved dry handling and braking over the previous generation tire, while the center ribs and inboard shoulder feature a silica-infused wet compound designed to increase wet braking performance. The computer-modeled Variable Contact Patch 3.0 optimizes pressure distribution across the contact patch through turns, reducing hot spots and improving tire life during aggressive use.
Internal construction of the Pilot Sport 4S features twin steel belts reinforced by a spirally wound hybrid reinforcement. This hybrid Aramid and nylon belt offers a lightweight, high-strength reinforcement above the steel belts to enhance high-speed handling, wear and durability. Specifically tuning the application of the cord filament provides Michelin engineers the ability to balance tension and strength, and a single-ply, polyester cord casing balances trade-offs between ride quality and responsive handling.