The tires installed on a Kia Optima can vary depending on the trim level and year of the car. However, the most common tire size for Kia Optimas is P215/55R17.
This tire size means that the tire width is 215 millimeters, with an aspect ratio of 55%, and mounted on a 17-inch rim. The P in the tire size indicates that it’s a passenger tire designed for use on passenger cars like the Kia Optima. The aspect ratio of the tire refers to the sidewall height of the tire, which is 55% of the tire’s width. The tire’s rim size is 17 inches, meaning that the tire is designed to fit on a 17-inch wheel.
However, if you have a newer Kia Optima, you may find that it comes with bigger wheels and tires. Some models come with P235/45R18 tires, which means they are wider in diameter than the P215/55R17 and mounted on an 18-inch rim.
It’s essential to note that you should always rely on the information in your car’s owner’s manual or the tire placard posted inside the driver’s doorjamb to determine the exact tire size for your Kia Optima. It’s also essential to make sure that the tire you are buying is compatible with your Kia Optima’s wheel size, the load capacity, and speed rating.
In conclusion, the most common tire size for Kia Optimas is P215/55R17. However, newer models may come with bigger tires, such as the P235/45R18. Always consult your car’s manual or the tire placard in the driver’s doorjamb to determine the tire size that’s right for your Kia Optima.