Bridgestone Potenza RE980AS+ 215/40R18 Tires

Bridgestone Potenza RE980AS+ 215/40R18 XL 89W is an ultra high performance all-season tire priced from $162.54.

Bridgestone Potenza RE980AS+ 215/40R18 XL 89W Tire Specs

215/40R18 is a Metric tire used as an original equipment on a variety of popular passenger cars. It also comes in a P-Metric (P215/40R18) variant

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

215 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 215/40R18 tire is 215 millimeters.

40 represents the aspect ratio of a tire, which is a ratio of the tire's sidewall height to its width. For 215/40R18 tire, the sidewall height is 40% of its tread width.

R denotes that 215/40R18 tire has radial construction.

18 represents the wheel diameter in inches that the tire is designed to fit. 215/40R18 can be mounted on rims with 18 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.

89 indicates the load index. A tire with a load index of 89 can support a maximum load of 1279 pounds or 580 kilograms per tire.

W indicates the speed rating. A tire with a speed rating of W is approved for speeds up to 168 miles per hour or 270 kilometers per hour under optimal conditions.

Maximum inflation for Bridgestone Potenza RE980AS+ 215/40R18 tire is 50 psi.

Uniform Tire Quality Grading System (UTQG) rating for Bridgestone Potenza RE980AS+ 215/40R18 tire is 500 AA A.

Tire manufacturer part number (MPN) is 012766.