Discover how tire speed ratings impact safety, performance, and your driving experience. Learn what each rating means before ...

One part of the string of information on the side of your car's tires is the load index, which is critical for your safety. Here's why it's important.

New tires with higher load index ratings can be used, so long as other specifications such as speed rating and size ... which ...

The letter is your speed rating, but what we're interested ... that corresponds to a given weight on the load index chart. The higher the number, the more weight a tire can carry.