Do you want to know what all those numbers and letters on your tire sidewall mean? Understanding this information is important for maintaining your vehicle's tires and ensuring optimal performance and safety. At Jeff Wyler Chrysler Dodge Jeep® RAM of Springfield, we are here to help you decode these numbers and letters.
Tire Size
The tire size is the largest number on the sidewall and consists of three sets of numbers. Drivers in Springfield should pay attention to this to get the right size tires for their vehicles. The first number is the tire width in millimeters from sidewall to sidewall. The second is the aspect ratio, which is sidewall height measured as a percentage of the width. The third is the wheel diameter in inches that the tire is designed to fit.
Tire Construction
Following the size numbers is a letter indicating the tire's internal construction. Most passenger tires will have an "R" in this spot, which stands for radial construction. Radial tires have fabric cords that run perpendicular to the tread for durability and stability. Some tires around London may have a "D" for diagonal or bias-ply construction.
Load Index and Speed Rating
The load index is a number that correlates with the tire's maximum load-carrying capacity when properly inflated. Speed rating is a letter denoting the tire's maximum speed capability near Dayton. Drivers around Urbana and beyond should refer to a load index and speed rating chart to determine the specifics of their tires.
Get Help Understanding Your Tires
The certified technicians at our service center near Fairborn can help further decipher your tire information. We can ensure you have the right tires for your vehicle and driving needs. Stop by Jeff Wyler Chrysler Dodge Jeep® RAM of Springfield or schedule a service appointment to learn more about your tires and how to maintain them properly.
Drive with Confidence in Springfield
Being informed about the numbers on your tire sidewall is the first step in taking control of your vehicle's tire health and performance. Let us help you crack the code so you can drive with confidence.