Atturo ST200 ST185/80R13 Tires

Atturo ST200 ST185/80R13 D 99/95L is a trailer tire.

Atturo ST200 ST185/80R13 D 99/95L Tire Specs

ST185/80R13 is a Special Trailer tire. It also comes in a Metric (185/80R13) and a P-Metric (P185/80R13) variant

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

ST indicates that ST185/80R13 is a trailer tire.

185 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 ST185/80R13 tire is 185 millimeters.

80 represents the aspect ratio of a tire, which is a ratio of the tire's sidewall height to its width. For ST185/80R13 tire, the sidewall height is 80% of its tread width.

R denotes that ST185/80R13 tire has radial construction.

13 represents the wheel diameter in inches that the tire is designed to fit. ST185/80R13 can be mounted on rims with 13 inches in diameter.

D denotes the load range of a tire. Load Range D is equivalent to an 8-ply rating in the old system, but the actual number of plies in the tire may be different. These tires are generally rated for a maximum inflation pressure of 65 psi, and are commonly found on light trucks, SUVs, and trailers, where higher load carrying capacity is needed. They are particularly important for vehicles that are used for towing or carrying heavy loads.

99/95 indicates a dual load index, meaning a tire can be used in a single or a dual application. For a single application, load index of 99 can support a maximum load of 1709 pounds or 775 kilograms per tire. For a dual application, load index of 95 can support a maximum load of 1521 pounds or 690 kilograms per tire.

L indicates the speed rating. A tire with a speed rating of L is approved for speeds up to 75 miles per hour or 121 kilometers per hour under optimal conditions.

Uniform Tire Quality Grading System (UTQG) rating for Atturo ST200 ST185/80R13 tire is 560 A A.

Tire manufacturer part number (MPN) is ST200-185140.