What Your Tire Sidewall Numbers Really Mean

Tire sidewall markings indicate width, aspect ratio, wheel diameter, load index, and speed rating. These numbers help ensure your tires are properly matched to your vehicle’s weight and driving conditions.

Using the wrong tire size can negatively impact handling, braking performance, and fuel efficiency. Speed and load ratings are especially important for highway driving and heavier vehicles.

Tire X helps Richmond drivers understand tire specifications and select the correct replacement tires for safety and performance.

If you’re unsure whether your tires are still safe, read our article on how tire tread depth affects safety in rainy Richmond weather.