Cooper Discoverer ATR 255/70R15 Tires

Cooper Discoverer ATR 255/70R15 SL 108S is an all-terrain tire.

Cooper Discoverer ATR 255/70R15 SL 108S Tire Specs

255/70R15 is a Metric tire. It also comes in a LT-Metric (LT255/70R15) and a P-Metric (P255/70R15) variant

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

255 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 255/70R15 tire is 255 millimeters.

70 represents the aspect ratio of a tire, which is a ratio of the tire's sidewall height to its width. For 255/70R15 tire, the sidewall height is 70% of its tread width.

R denotes that 255/70R15 tire has radial construction.

15 represents the wheel diameter in inches that the tire is designed to fit. 255/70R15 can be mounted on rims with 15 inches in diameter.

SL denotes the load range of a tire. Standard Load or SL tires are typically found on passenger cars, smaller SUVs, and light trucks. These tires are designed to operate at standard inflation pressures and are not meant for carrying heavy loads.

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.

S indicates the speed rating. A tire with a speed rating of S is approved for speeds up to 112 miles per hour or 180 kilometers per hour under optimal conditions.

Uniform Tire Quality Grading System (UTQG) rating for Cooper Discoverer ATR 255/70R15 tire is 500 A B.

Tire manufacturer part number (MPN) is 90000002759.