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What Do Tire Numbers Mean?

Closeup of Tire Numbers with Wheel Rim

 

Have you ever looked at the sidewalls of your tires, seen the serial numbers etched on them, and wondered, what do the numbers on tires mean? No worries. Today, we’re going to cover tire number meanings. If you find that you’re in need of new tires after reading, schedule an appointment near Indiana at the Tri-Star Chevrolet Buick of Blairsville service center in Blairsville! 

Tire Number Meanings

So, what do the numbers on your tires mean? They indicate tire size, how much weight they can bear, how fast they can go, and what type of tire they are. Now that New Aleandria drivers know what tire numbers mean, let’s practice decoding their serials with an example: 

Example: P215/65R15 95H

“P”

The P stands for “P-Metric tire,” which indicates that this tire is used for passenger vehicles. If the opening letters of the serial said, “LT,” it would indicate that this tire is to be used for light trucks.

“215”

Following the opening letters, you’ll see a three-digit number that indicates the number of millimeters from the exterior sidewall to the interior sidewall. In this case, your tire would be 215 millimeters wide. 

“65”

After the slash, you’ll find two digits that indicate the tire’s aspect ratio. The “65” here indicates the height of the tire’s cross-section to its width—that the tire’s height is 65% of the tire’s width. 

“R”

This letter indicates the tire’s type of construction. In this case, “R” means radial. 

The “R” indicates the tire’s construction, with “R” representing that it’s a radial.

“15”

This indicates what type of wheel size the tire is meant for. Here, “15” means that the tire in question is made to be installed on 15-inch wheels. 

“95H” 

The final piece of the code both indicates the speed rating and load index of the tire. The load is indicated by the “95” and tells you how much weight the tire can support. The “H” indicates how fast the tire can go. There are lettered ratings that range from “A-Z.” “H” in particular means “130 MPH.” 

Have More Questions About What the Numbers on Your Tires Mean? 

Now that we’ve answered the question, “What do tire numbers mean?”, if Latrobe drivers have further questions about tire number meanings, or are interested in replacement tires, give the Tri-Star Chevrolet Buick of Blairsville service garage in Blairsville a call. Our phone number is . We’ll walk you through everything you need to know! In the meantime, take a moment to read some other tire-related guides, including an overview of tire rotations and tire rotation frequency!

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681 Route 22 Hwy W
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681 Route 22 Hwy W
Blairsville, PA 15717
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