Tire Rack - Michelin Pilot Sport 4S Overview

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. It utilizes key technologies engineered during competition in the 24 Hours of Le Mans. 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. Like all Max Performance Summer tires, it is not intended to be serviced, stored, nor driven in near- or below-freezing temperatures, through snow, or on ice.

Michelin Pilot Sport 4S Premium Touch Logo Select sizes of the Pilot Sport 4S are available with Michelin's Premium Touch sidewall treatment. This velvet-effect checkered sidewall is created using cutting-edge laser technology and is designed to enhance the vehicle's visual presence. These sizes are identified on the "Specs" page and in the search results.

Michelin Pilot Sport 4S 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.

Limited sizes of the Michelin Pilot Sport 4S are available with Michelin Acoustic Technology, which involves adhering a layer of sound-absorbing foam to the inner liner of the tire to reduce cabin noise in the vehicle. These sizes are identified on the Specs page and in the search results.

Select original equipment sizes of the Pilot Sport 4S utilize the Michelin Connected Tire System in conjunction with Michelin Acoustic Technology. These tires contain the sound-absorbing foam and a sensor designed to communicate specific data about the tire to the vehicle's built-in systems. These tires can be identified by the specific Acoustic and Bluetooth logos on the tire's sidewall.

Note: Tires exposed to temperatures of 20 degrees F (-7 degrees C) or lower must be permitted to gradually return to temperatures of at least 40 degrees F (5 degrees C) for at least 24 hours before they are flexed in any manner, such as by adjusting inflation pressures, mounting them on wheels, or using them to support, roll, or drive a vehicle.

Flexing of the specialized rubber compounds used in Max Performance Summer tires during cold-weather use can result in irreversible compound cracking. Compound cracking is not a warrantable condition because it occurs as the result of improper use or storage. Tires exhibiting compound cracking must be replaced.

*Specific sizes utilizing Michelin Total Performance eco-focused manufacturing methods are identified as such on the Sizes tab, as well as on the tire's Specs tab.

Source: Tire Rack - Michelin Pilot Sport 4S

Michelin Official Website

Source: Michelin Official Website-Pilot Sport 4S

2018 BMW X3 M40i (D. Ebbert)

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