Instead of second-guessing, there's a built-in feature in your tires that could readily tell you the precise time to replace them. This feature is called the wear bar/wear indicator. Read more ...

Manufacturers have made bald tires easier to spot by placing a series of molded horizontal bars at the base of the grooves. The bars become flush with surrounding tread when wear reduces a groove ...

Last year's Cup race at Bristol saw drivers unable to go much more than 35 to 40 laps for most of the race before the tires ...