If you've ever been curious about what all those numbers and letters are on the side of your tires (aside from the brand name, of course), and you've gone down a bit of a research rabbit hole, you'll ...

Tire treadwear ratings, also known as Uniform Tire Quality Grading (UTQG), were developed by the National Highway Traffic Safety Administration (NHTSA) and the U.S. Department of Transportation (DOT).

The Nexen Roadian HTX2 is part of the Tire test program at Consumer Reports. In our lab tests, Tire models like the Roadian HTX2 are rated on multiple criteria, such as those listed below. Owner ...