The Michelin Pilot Sport 4S Autocross is an ultra-high-performance summer tire for sport and performance cars, drawing on the Pilot Sport 4S design. Dynamic Response Technology supports sharp steering and cornering, and a hybrid compound improves dry grip.
Variable Contact Patch technology spreads pressure across the footprint during aggressive driving, helping reduce hot spots and extend tire life.
In the 245/45ZR18 size, this tire has a 100Y load and speed rating with extra load (XL) construction. Specs include 9.5/32-inch tread depth, a 50 psi maximum inflation pressure, a UTQG rating of 300AAA and an overall diameter of about 26.7 inches. A 30,000-mile treadwear warranty applies to this size.
| Tire size | 245/45ZR18/XL (100Y) |
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| Tire load index | 100 |
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| Tire speed rating | (Y) |
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| Tire load range | Extra Load |
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| Tire season | Summer |
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| Tire terrain | Highway Terrain |
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| Uniform tire quality grade (utqg) | 300 AA A |
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| Tire treadwear rating | 300 |
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| Tire sidewall style | Black Sidewall |
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| Tread depth | 9.5/32 |
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| Overall diameter | 26.7 in |
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| Manufacturer | Michelin |
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| Tire width | 245 mm |
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| Vehicle fitment type | Universal |
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| Is run flat | N |
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| Vehicle type | Car |
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| Construction type | Radial |
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| Electric vehicle tire | Y |
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| Automotive parts division | Performance |
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| Wheel diameter | 18 in |
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| Flotation tire | N |
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| Maximum vehicle rim width | 9 in |
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| Features | High-Speed |
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| Items included | Tire Only |
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| Minimum vehicle rim width | 7.5 in |
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| Total count | 1 |
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| Vehicle class designator | P |
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| Tire location | Front and Rear Tires |
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| Tire diameter | 18 in |
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| Tire type | Passenger Car Tires |
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| Model | 03481 |
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| Maximum inflation pressure | 50 psi |
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| Tire aspect ratio | 45 |
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Specifications are as published by the manufacturer. Please confirm the size against the placard on your vehicle before ordering.
