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Michelin Pilot Sport 4S
Shop the Michelin Pilot Sport 4S 315/30R21 105Y 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 315/30R21 Pilot Sport 4S is a popular fitment for select Chevrolet Corvette, Audi R8, Mercedes-AMG GT, Nissan GT-R, Lamborghini Huracan, Chevrolet Corvette Z06 models, plus similar sports cars, performance sedans, premium EVs, grand tourers, and high-output coupes using 21-inch wheels.
Best for: drivers who want max-performance summer grip, precise steering, wet braking confidence, and occasional track capability on wide rear performance fitments, supercars, and staggered track-capable setups, especially in a 315/30R21 size with 105Y XL capability.
Why choose the Michelin Pilot Sport 4S in 315/30R21?
Built for wide rear performance fitments, supercars, and staggered track-capable setups: The 105Y 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 315/30R21 Michelin Pilot Sport 4S
This tire size is commonly used on select trims or staggered applications of the Chevrolet Corvette, Audi R8, Mercedes-AMG GT, Nissan GT-R, Lamborghini Huracan, and Chevrolet Corvette Z06. 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
315/30R21: This size is designed for 21-inch wheels and is a practical choice for wide rear performance applications where traction, cornering grip, and high-speed stability are priorities.
105Y 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.
| SECTION WIDTH Measures the width of the tire from sidewall to sidewall, which is mounted on a wheel and inflated. | 315 |
| ASPECT RATIO Determines the sidewall height of the tire, based on the width. | 30 |
| RIM DIAMETER Measures the rim size from top to bottom (in inches). | 21" |
| OVERALL DIAMETER Measures the tire height from top to bottom when mounted on a wheel and inflated. | 28.5" |
| RIM WIDTH RANGE The approved range of rim widths this tire can be safely mounted on. | 10.5" - 11.5" |
| WEIGHT The weight of the tire measured in pounds (weight of tire only). | 32.72 LBS |
| TREAD DEPTH Measured in /32 of an inch to determine the height of the tread block from top to bottom. | 9/32" |
| LOAD INDEX Determines the weight a tire can carry at maximum air pressure. See load Index chart. | 105 |
| LOAD RANGE Determines the ply rating of the tire. Should be replaced with the same or higher rating. | XL |
| MAX PSI The max psi is the highest pressure the tire can hold, but should be inflated to your vehicle specifications not exceeding this amount. | 50 PSI |
| SPEED RATING Designation from laboratory testing to determine the maximum speed the tire can travel. Maintain the same speed rating or higher for replacement. | Up to 186 mph |
| SIDEWALL DESC. The sidewall designation to describe the lettering on the sidewall. | Black Side Wall |
| WARRANTY Estimates the life expectancy of the tire, set by the tire manufacturer. | 30000 |
| VPN Vendor Product Number | 60509 |
| GTIN Global Trade Item Number | 086699605092 |
Customer Reviews
I haven’t had the chance to see how long they last, but they grabbed pretty good and there’s no pull it either way.
Highly recommend Michelin tires..
Great tire. The rest of my family has also purchased these tires.