Tires 101
Simple guides to help you understand, choose, and care for your tires.
Tire Maintenance & Safety
Learn how tire pressure, tread depth, balance, and wheel alignment affect your ride and safety.
How to Read a Tire Size
The code on your tire sidewall tells you its size. Here is what each part means.
Width
The tire's width in millimeters, measured from sidewall to sidewall. Check your vehicle's fitment before changing widths.
Sidewall height
The distance from the wheel rim to the tire tread. Sidewall height can affect ride comfort and handling.
Aspect Ratio
The sidewall height as a percentage of the tire's width. A lower ratio means a shorter sidewall.
Rim Diameter
The wheel diameter in inches. It must match the diameter listed for the tire.
Tire Types, Explained
Tire types are made for different vehicles, roads, and weather. Compare the options to find what suits your needs.
Made for everyday use on dry and wet roads, with some capability in light snow. Not a substitute for winter tires in severe conditions.
Designed for a broad range of everyday temperatures. Check the tire maker's guidance for your local climate.
Often designed to balance everyday performance and tread life. Actual mileage depends on the tire and how you drive.
When to Replace Your Tires
Watch for these signs of wear or damage. If you are unsure, have a tire professional check them.
Check the tire's age
Find the manufacture date in the DOT code. Older tires should be inspected, even if the tread looks good.
Tread below 2/32"
If Lincoln's head is fully visible in the penny test, the tread may be too low. Have the tires checked.
Vibration or pulling
Vibration, pulling, or uneven wear can point to a tire or alignment issue. Ask a professional to inspect it.
Cracks or bulges
Cracks, cuts, or a bulge can signal tire damage. Have a damaged tire inspected promptly.
Understanding UTQG Ratings
UTQG grades describe treadwear, traction, and temperature resistance. Here is how to read them.
Treadwear
Higher grades generally indicate longer tread life in the test. 100 is the comparison baseline.
Traction
A grade for wet-road traction. AA is highest, followed by A, B, and C.
Temperature
A grade for heat resistance at speed. A is highest, followed by B and C.
Tire Questions, Answered
Ready to Choose?
Use your vehicle details to find tire options that fit.