Frequently Asked Questions
The numbers in “235/65R18” constitute the tire’s dimensions:
- 235 is the width of the tire in millimeters.
- 65 is the aspect ratio, which is the height of the tire sidewall as a percentage of the width. So in this case, the height of the sidewall is 65% of 235 mm.
- R stands for radial; this means that the layers of fabric run radially across the tire.
- 18 is the diameter of the wheel in inches that the tire is designed to fit.
The tire size 235/65R18 isn't popular for the Kia Sportage, which normally comes with smaller tires. However, some drivers may also pick to match larger tires for a selection of reasons, including stepped-forward appearance or off-road performance.
Pirelli and Goodyear are a few of the leading manufacturers of all-terrain tires inside the size of 235/65R18, providing options like the Scorpion collection and Assurance WeatherReady®, making sure stability between on-road comfort and off-road.