Cooper Discoverer SRX 275/65R18 Tires
Cooper Discoverer SRX 275/65R18 SL 116T is a touring all-season tire priced from $221.99.
Cooper Discoverer SRX 275/65R18 SL 116T Tire Specs
275/65R18 is a Metric tire used as an original equipment on a variety of popular pickup trucks and sport utility vehicles. It also comes in a LT-Metric (LT275/65R18), a Metric Commercial (275/65R18C) and a P-Metric (P275/65R18) variant
Let us decode each aspect of the tire size code to have a full understanding what this tire size means.
275 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 275/65R18 tire is 275 millimeters.
65 represents the aspect ratio of a tire, which is a ratio of the tire's sidewall height to its width. For 275/65R18 tire, the sidewall height is 65% of its tread width.
R denotes that 275/65R18 tire has radial construction.
18 represents the wheel diameter in inches that the tire is designed to fit. 275/65R18 can be mounted on rims with 18 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.
116 indicates the load index. A tire with a load index of 116 can support a maximum load of 2756 pounds or 1250 kilograms per tire.
T indicates the speed rating. A tire with a speed rating of T is approved for speeds up to 118 miles per hour or 190 kilometers per hour under optimal conditions.
Maximum inflation for Cooper Discoverer SRX 275/65R18 tire is 44 psi.
Uniform Tire Quality Grading System (UTQG) rating for Cooper Discoverer SRX 275/65R18 tire is 740 A B.
Tire manufacturer part number (MPN) is 166545019.

275/65R18 Dimensions Chart
Cooper Discoverer SRX 275/65R18 tire has a diameter of 32.1", a width of 10.8", mounts on a 18" rim, and makes 629 revolutions per mile.
Metric | Inches | |
---|---|---|
Tire Width | 275 mm | 10.8" |
Aspect Ratio | 65% | |
Rim Diameter | 457 mm | 18" |
Tire Diameter | 815 mm | 32.1" |
Sidewall Height | 179 mm | 7" |
Circumference | 2559 mm | 100.8" |
Revolutions | 391 per km | 629 per mile |
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