MichelinPilot Sport 4S245 /40 R21 100Y XL BSW

Upgrade to the Michelin Pilot Sport 4S 245/40R21 100Y 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 245/40R21 Pilot Sport 4S is a popular fitment for select Lexus IS, Genesis G70, Cadillac CT4-V, Ford Mustang, Chevrolet Camaro, Dodge Challenger models, plus similar sports cars, performance sedans, premium EVs, and high-output SUVs using 21-inch wheels.

Why choose the Michelin Pilot Sport 4S in 245/40R21?

• Built for sport sedans, grand touring cars, premium EVs, and performance crossovers: The 100Y 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 approximately 80% road and 20% track use, making it a strong match for spirited street driving 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 245/40R21 Michelin Pilot Sport 4S

This tire size is commonly used on select trims or staggered applications of the Lexus IS, Genesis G70, Cadillac CT4-V, Ford Mustang, Chevrolet Camaro, and Dodge Challenger. 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 marking.

Size and rating details

• 245/40R21: This size is designed for 21-inch wheels and is a practical choice for sport sedan, grand touring, EV, and performance crossover fitments that need summer handling with daily usability.

• 100Y 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 Y-rated speed capability for high-performance summer driving.