275/35R21 XL Michelin Pilot Sport All Season 4 103V

Pilot Sport All-Season 4 UHP All-Season

The Michelin Pilot Sport All-Season 4 is Michelin's ultra-high-performance all-season tire, built for drivers of sports cars, sporty coupes, performance sedans, and performance crossovers/SUVs who want track-capable grip without giving up year-round drivability. It replaces the Pilot Sport A/S 3+ in Michelin's lineup, and Michelin's own testing shows real gains over that predecessor: 4% better dry braking, 5% better wet braking, and 10% more snow traction, along with up to 29% more tread life than leading competitor UHP all-season tires. The tire pairs a race-inspired Extreme Silica+ tread compound with an asymmetric pattern that puts extra rubber on the outer shoulder for lateral grip, while 360-degree variable sipes and Helio+ technology (a cold-flexible rubber formulation) extend usable traction into wet, cold, and light-snow conditions. It carries the M+S all-season symbol but is not 3PMSF/severe-snow certified, so it is a three-season performance tire with light-winter capability rather than a true winter tire. Michelin's confidence in the design is underscored by Chevrolet choosing it as the first all-season original-equipment tire for the Corvette C8, proven on both street and track. It suits a driver who wants sports-car handling on dry pavement and real confidence when the weather turns.