In theory, getting bigger tires will increase your contact patch with the road. Since the tire’s contact patch is the only thing that helps keep your car doing what you ask it to do, this is a ...

With most tire sizes listed in their metric version these days (305/50R20, for example), a tire’s overall inflated height isn’t made clear. Because this is often the first dimension we want to ...

Confused about the pressure number on your tire? Learn why the tire's pressure rating isn't what you should use and what to ...

There's a lot of numbers associated with picking out tires for your car, but one you may not look too closely at is arguably ...

The future of tires is here, with 70% recycled content. Learn about Pirelli's groundbreaking P Zero, and why it's currently ...

And the 15 is the size of the wheel it's designed for. So, in this case you've got a 31-inch tall tire for a 15-inch wheel. You know the wheel radius is 7.5-inches, and the tire radius is 15.5 inches.

Federal regulations require specific information to be molded on the sidewall of a truck tire. The size, date of manufacture, ...

Original-equipment tires typically emphasize ride comfort and all-weather grip; plus-sizing reduced both in our tests using a Honda Accord and BMW 5-Series, each with common-model tires. Use the ...

An 18-inch tire, for example, will probably weigh at least a couple of pounds more than a 16- or 17-inch tire. That could also be true of a larger-size wheel.

Different tires have different tread patters. Does it matter what kind you use and can you use different one on your front ...

See the updated information at the end of this article regarding the tire sizes for the 1986 BMW R65 (and possibly other Airheads!) It won’t fit… or will it? It was that time again — the ...