Frequently Asked Questions
A 225/55R19 tire, when properly mounted and inflated on a 19-inch wheel, measures around 26.5 inches in overall diameter. Furthermore, the tread width is 8.9 inches and the sidewall height is 6.3 inches from rim to tread. As a result, the overall circumference of the tire is roughly 83 inches.
Rotating 225/55R19 tires every 5,000–8,000 miles is recommended to ensure that the tread wears down evenly in the four tires. Nevertheless, it would be best to look at your owner’s manual as the intervals for rotation change and depend on several factors, including driving habits, vehicle type/weight, wheel alignment, etc. Thus, regular tire rotation is essential to prolong the tread life.
In the 225/55R19 tire, 225 characterizes the width of the tire tread in millimeters, and 55 is the aspect ratio, where the number indicates the height of the sidewall as a proportion of the width of the walkable portion of the tire. R stands for a radial tire, and 19, in turn, demonstrates the wheel diameter in inches.
Normally, a 225/55R19 tire will have to reach air pressure of 30-35 PSI when measured cold before driving. However, the best air pressure level can slightly differ for various tire models. One must always check their make’s or more elaborate model’s tire air pressure in the owner’s manual, like the vehicle placard.
This is a metric type with a standard width of 225 millimeters for the central part, an aspect ratio of 55%, which means that the height of the sideboard in millimeters will be 55% of the 225-meter tread, radial construction. The size of the installed disks is in inches. When such a tire is properly mounted on a car, it perfectly fits and functions.
