Michelin 26304 Pilot Sport A/S 4 275/35ZR21 XL 108Y All-Season Ultra-High Performance Tire

The Michelin Pilot Sport A/S 4 275/35ZR21 XL (108Y) is an ultra-high performance all-season tire engineered for drivers of high-end sports cars, sporty coupes, performance sedans, crossovers, and SUVs who demand year-round capability without sacrificing driving excitement. Developed on the track and proven on the street, the Pilot Sport A/S 4 delivers superior performance across wet, dry, and light snowy conditions.

Key Features:

• Extreme Silica+ Tread Compound — A race-inspired compound engineered with maximum silica content to maximize grip on slick pavement in all conditions
• Asymmetric Tread Pattern — Places more rubber on the outer shoulder for exceptional lateral grip and confident cornering
• 360° Variable Sipe Technology — Full-depth, interlocking sipes deliver biting edges for improved traction in wet and light snowy conditions
• Dynamic Response Technology — Distributes forces and temperatures evenly across the tire for longer wear life and precise steering response
• Three-Peak Mountain Snowflake (3PMSF) Rated — Meets severe snow traction standards, making it a true all-season performer
• 45,000-Mile Treadwear Warranty — Backed by Michelin's industry-leading mileage guarantee
• XL (Extra Load) Rating — Reinforced construction to handle heavier loads at higher inflation pressures

Performance Highlights:

• 4% better dry braking, 5% better wet braking, and 10% more snow traction compared to the Michelin Pilot Sport A/S 3+
• Wide circumferential grooves and lateral channels evacuate water effectively, minimizing hydroplaning risk
• UTQG Rating: 540 AA A — indicating excellent treadwear, superior wet traction, and superior temperature resistance
• Became the first all-season tire ever selected by Chevrolet as OEM fitment on the Corvette

Backed by the Michelin Promise Plan, which includes a 60-day satisfaction guarantee, roadside assistance, and a manufacturer's limited treadwear warranty, the Pilot Sport A/S 4 is built for drivers who refuse to compromise between performance and all-season versatility.