Michelin Pilot Sport 4S HL285/35R21 Tires

Michelin Pilot Sport 4S HL285/35R21 XL 108Y is an ultra high performance summer tire priced from $467.99.

Michelin Pilot Sport 4S HL285/35R21 XL 108Y Tire Specs

HL285/35R21 is a High-Load tire. It also comes in a Metric (285/35R21) variant

Let us decode each aspect of the tire size code to have a full understanding what this tire size means.

HL indicates that HL285/35R21 is a high load tire designed for heavier loads.

285 is a section width of the tire from one sidewall to the other. Tire tread width is typically a bit narrower than the section width. Section width of HL285/35R21 tire is 285 millimeters.

35 represents the aspect ratio of a tire, which is a ratio of the tire's sidewall height to its width. For HL285/35R21 tire, the sidewall height is 35% of its tread width.

R denotes that HL285/35R21 tire has radial construction.

21 represents the wheel diameter in inches that the tire is designed to fit. HL285/35R21 can be mounted on rims with 21 inches in diameter.

XL denotes the load range of a tire. XL stands for Extra Load. Tires with this designation are constructed to carry more weight than standard load tires of the same size. This is achieved by reinforcing the tire's construction, often through additional or stronger layers known as plies.

108 indicates the load index. A tire with a load index of 108 can support a maximum load of 2205 pounds or 1000 kilograms per tire.

Y indicates the speed rating. A tire with a speed rating of Y is approved for speeds up to 186 miles per hour or 299 kilometers per hour under optimal conditions.

Maximum inflation for Michelin Pilot Sport 4S HL285/35R21 tire is 51 psi.

Uniform Tire Quality Grading System (UTQG) rating for Michelin Pilot Sport 4S HL285/35R21 tire is 300 AA A.

Tire manufacturer part number (MPN) is 69141.