MichelinPilot Sport All Season 4245 /40 R21 100Y XL BSW

Get ultra-high-performance all-season grip from the Michelin Pilot Sport All Season 4 245/40R21 100Y XL BSW, an ultra-high-performance all-season tire built for drivers who want sharp steering, strong wet and dry grip, winter confidence, and daily usability from one performance tire. This 245/40R21 Pilot Sport All Season 4 is a popular responsive fitment for select Polestar 2, BMW i4, Ford Mustang Mach-E, Kia EV6 GT, Tesla Model 3 Performance, Tesla Model S models, plus similar performance vehicles using 21-inch wheels.

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

• Built for performance SUVs, EV crossovers, and luxury sport utility vehicles: The 100Y XL rating adds extra load capacity for heavier trims, performance packages, EVs, cargo, passengers, and staggered setups.

• Ultra-high-performance all-season grip: The Pilot Sport All Season 4 is designed for confident performance on wet, dry, and snowy roads without moving to a dedicated summer tire.

• Dynamic Response Technology: Michelin engineers the tire to distribute forces and temperatures evenly, supporting responsive handling and longer wear life.

• Asymmetric performance tread: A performance-focused tread pattern with strong outer-shoulder support helps deliver lateral grip, steering precision, and planted cornering.

• All-season traction details: Full-depth and interlocking sipes, biting edges, and Michelin tread-compound technology help maintain grip in rain, cold conditions, and light snow.

Popular vehicle fitments for 245/40R21 Michelin Pilot Sport All Season 4

This tire size is commonly used on select trims or staggered fitments of the Polestar 2, BMW i4, Ford Mustang Mach-E, Kia EV6 GT, Tesla Model 3 Performance, and Tesla Model S. It is also a strong option for similar sports cars, performance sedans, EVs, premium crossovers, and SUVs that use the same tire size, load rating, speed rating, and wheel diameter.

Size and rating details

• 245/40R21: This size is designed for 21-inch wheels and helps shoppers match an original equipment, replacement, or staggered performance fitment.

• 100Y XL: The service description and load range identify the tire's load capacity and speed rating for compatible performance vehicles.

• BSW: This version uses black sidewall styling for the finished look on the vehicle.