Michelin Pilot Sport 4S 265/40R17 Tires
Michelin Pilot Sport 4S 265/40R17 XL 100Y is an ultra high performance summer tire priced from $366.99.
Michelin Pilot Sport 4S 265/40R17 XL 100Y Tire Specs
265/40R17 is a Metric tire. It also comes in a P-Metric (P265/40R17) variant
Let us decode each aspect of the tire size code to have a full understanding what this tire size means.
265 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 265/40R17 tire is 265 millimeters.
40 represents the aspect ratio of a tire, which is a ratio of the tire's sidewall height to its width. For 265/40R17 tire, the sidewall height is 40% of its tread width.
R denotes that 265/40R17 tire has radial construction.
17 represents the wheel diameter in inches that the tire is designed to fit. 265/40R17 can be mounted on rims with 17 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.
100 indicates the load index. A tire with a load index of 100 can support a maximum load of 1764 pounds or 800 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 265/40R17 tire is 50 psi.
Uniform Tire Quality Grading System (UTQG) rating for Michelin Pilot Sport 4S 265/40R17 tire is 300 AA A.
Tire manufacturer part number (MPN) is 68363.

265/40R17 Dimensions Chart
Michelin Pilot Sport 4S 265/40R17 tire has a diameter of 25.4", a width of 10.4", mounts on a 17" rim, and makes 794 revolutions per mile.
Metric | Inches | |
---|---|---|
Tire Width | 265 mm | 10.4" |
Aspect Ratio | 40% | |
Rim Diameter | 432 mm | 17" |
Tire Diameter | 644 mm | 25.4" |
Sidewall Height | 106 mm | 4.2" |
Circumference | 2022 mm | 79.8" |
Revolutions | 495 per km | 794 per mile |
All listed guides, data and/or calculations are for informational purposes only. TireSizes.com does not warrant or make any representations regarding the accuracy of or the results of the use of this information.