MichelinPilot Sport 4S275 /35 R21 103Y XL BSW

Choose the Michelin Pilot Sport 4S 275/35R21 103 XL BSW, a max-performance summer tire built for drivers who want precise steering, exceptional dry grip, confident wet braking, and road-to-occasional-track capability. This 275/35R21 Pilot Sport 4S is a popular fitment for select Tesla Model S, Mercedes-AMG GT, Porsche 911, BMW M8, Audi RS e-tron GT, Porsche Taycan models, plus similar sports cars, performance sedans, premium EVs, grand tourers, and high-output coupes using 21-inch wheels.

Best for: enthusiasts replacing performance tires on staggered sports cars, supercars, sport sedans, premium EVs, and high-output coupes on premium EVs, supercars, grand tourers, and staggered high-output performance applications, especially in a 275/35R21 size with 103 XL capability.

Why choose the Michelin Pilot Sport 4S in 275/35R21?

• Built for premium EVs, supercars, grand tourers, and staggered high-output performance applications: The 103 XL service description adds extra load capacity for performance trims, larger wheels, staggered packages, passengers, and high-speed driving.

• Road and occasional track performance: Michelin positions the Pilot Sport 4S for road and occasional track use, making it a strong match for spirited street driving, canyon runs, and occasional performance events.

• Dynamic Response Technology: The tire is engineered for ultra-precise steering response, strong cornering power, and connected handling at high speed.

• Multi-Compound Construction: Michelin uses a performance-focused tread design to help deliver dry grip, wet braking, and consistent control where drivers need it most.

• Premium performance pedigree: The Pilot Sport 4S is derived from the Pilot Super Sport and is acclaimed by performance manufacturers such as Mercedes-AMG, Ferrari, and Porsche.

Popular vehicle fitments for 275/35R21 Michelin Pilot Sport 4S

This tire size is commonly used on select trims or staggered applications of the Tesla Model S, Mercedes-AMG GT, Porsche 911, BMW M8, Audi RS e-tron GT, and Porsche Taycan. It is also a strong option for comparable performance vehicles that use the same tire size, load rating, speed rating, wheel diameter, and any applicable OE or run-flat marking.

Size and rating details

• 275/35R21: This size is designed for 21-inch wheels and is a practical choice for premium EV, supercar, and grand touring fitments that need high-output summer performance.

• 103 XL: The service description and load range identify the tire's load capacity and speed capability for the intended performance application.

• BSW: This version uses black sidewall styling for a clean performance look.

• Speed capability: This size carries a performance-focused service description for its OE-marked application.