Dear Car Talk: Can you tell me why tire sizes are designated as they are? If I understand correctly, we have metric, English and a ratio. Like, a “235-75R15” tire is 235 millimeters wide, has a ...

Every car guy on the planet has been at a car show and spotted a car that just doesn’t have the right tire and wheel combination. Maybe the tires are too small, the backspacing is wrong, or the look ...

Many drivers give little thought to the sizes of their wheels and tires except for cosmetic purposes. But, wheel size — and the size of tires you put on them — matter. Using improper tires can be ...

What we do to increase trail performance often decreases fuel economy on the street. With the help of Michelin, we undertook to study that situation from the tire's point of view, and see what effect ...