Frequently Asked Questions
A tire measures roughly 25.3 inches in outer diameter when installed and fully inflated on a 17-inch rim. The tread is 9.6 inches wide, and the sidewall height from the rim to the tread is about 5.5 inches. As a result, the assembled circumference of the tire is about 79.5 inches.
To ensure even tread wear on all four tires, most vehicle manufacturers suggest rotating 245/45R17 tires every 5,000–8,000 miles. Nevertheless, Optimal rotation intervals may differ, depending on your driving style, vehicle weight, wheel alignment settings, and other factors. It is critical to rotate your tires regularly to get the most out of your usable tread life.
This is the tire size information. The first number 245 is the tire tread width in millimeters; in this case, 245 mm or 9.6 inches. The second number 45 is the aspect ratio; therefore, the sidewall height of the tire is 45% of the tread width. The “R” means that the tire is radial, and 17 is the wheel diameter in inches for which the tire was made.
Under normal circumstances, a tire’s cold inflation pressure is usually between 30 and 35 PSI. But ideal pressure can be above or below this range by some pounds, depending on the vehicle’s make, model, and loading. Refer to the tire information placard on the door jamb of the driver or the owner’s manual of your car for the recommended pressure by the manufacturer.
The 245/45R17 is a low-profile metric tire size. It has a 245mm tread width, a short 45% aspect ratio for the sidewall height, a radial construction style, and is designed to fit on a 17-inch diameter wheel. This offers exceptional grip and handling qualities when appropriately mounted on its specified performance vehicle applications.
