The Michelin Pilot Sport All-Season 4 is a performance all-season tire built for responsive control. Dynamic Response Technology helps transmit steering input to the road, the Formula-E tread pattern combined with functional elastomers and silica supports wet and dry grip and braking, and lower rolling resistance improves efficiency.
In the 245/40ZR18 size, this tire has a 97Y load and speed rating with extra load (XL) construction. Specs include 10/32-inch tread depth, a 50 psi maximum inflation pressure, a UTQG rating of 540AAA and an overall diameter of about 25.9 inches. A 45,000-mile treadwear warranty applies to this size.
| Tire size | 245/40R18 |
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| Tire load index | 97 |
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| Tire load range | Extra Load |
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| Tire season | All-Season |
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| Tire terrain | Highway Terrain |
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| Uniform tire quality grade (utqg) | 540 AA A |
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| Tire treadwear rating | 540 |
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| Tread depth | 10/32 |
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| Overall diameter | 25.9 in |
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| Electric vehicle tire | Y |
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| Brand | Michelin |
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| Tire type | Passenger Car Tires |
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| Features | Wet or Dry |
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| Tire width | 10.15 in |
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| Tire diameter | 18 in |
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| Tire aspect ratio | 40 |
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| Construction type | Radial |
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| Is run flat | N |
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| Maximum inflation pressure | 50 psi |
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| Wheel diameter | 18 in |
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| Product line | Michelin Pilot Sport AS 4 |
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| Model | Pilot Sport All Season 4 13787 |
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| Assembled product weight | 25.29 lb |
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| Automotive parts division | Performance |
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| Maximum vehicle rim width | 9.50 in |
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| Minimum vehicle rim width | 8.00 in |
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Specifications are as published by the manufacturer. Please confirm the size against the placard on your vehicle before ordering.
