The jumble of numbers and letters on the side of your tires is confusing. We’ll tell you how to crack the code so you can understand what tire sizes mean.

Consumer Reports deciphers the cryptic sidewall codes on a typical tire, explaining how to decode tire size, load index, maximum pressure, speed rating, and more.

16. The last thing on the form is a current wheel and tire size. To find the backspacing of our current rims, we clamped two squares together and then used a third to measure our backspacing.

Consumer Reports shows you how to choose a different-sized wheel and tire combination. Replacing both the wheels and tires can make sense for drivers looking to make significant performance gains.

Lift-to-tire ratio charts are a good place to start when matching up tires for your 4x4, but many of the charts come across as vague guidelines, not absolute answers.

We cover some tire sizes you won’t see every day. Whether it's for mini trail slayers or behemoth road warriors, these bikes require some “special” sizes.

If curb rash is the bane of your car's existence, it's likely blaming you and your choice of tires. Here's how to know if your vehicle's rubber is the issue.