Learn how to read tire speed ratings and load indexes. Find how how to find tire speed ratings and load index and why they're important when buying new tires.

May 20, 2025 · Thankfully, most of what you need to know about a set of tires is written on their sidewalls. The numbers show tire ratings, their size, and the type of weather they can handle.

May 14, 2023 · Tire ratings and labels provide valuable information about a tire’s performance, including its speed rating, load capacity, and treadwear rating. The speed rating indicates the maximum speed …

Oct 15, 2025 · CR explains the cryptic sidewall codes on a typical tire, explaining how to decode tire size, load index, maximum pressure, speed rating, and more.

Tire ratings are the alphanumeric markings on your tire's sidewall that spell out essential details about size, age, performance capabilities, and safety features.

Dec 30, 2025 · The numbers on a tire's sidewall provide information about its size, manufacture date, load rating, speed rating, and maximum pressure levels.

Aug 14, 2024 · Knowing how to read your tire is a helpful skill for buying the correct wheels and tires and determining a tire's age and its maximum load-carrying capacity.

What is a tire load rating and what is a tire speed rating? Do they have to be respected when replacing tires? Find the answers to your questions in this article.

Oct 4, 2023 · Understanding tire sidewall markings is crucial when buying new tires, and fortunately, it's simple. We explain these markings, including tire load index and speed ratings, with helpful...

The rating system is called the Uniform Tire Quality Grading System, and the tire ratings are on the sidewall of every passenger vehicle tire sold in the United States.