Today’s Vocabulary Lesson: Common Tire Terminology
Tuesday, April 12, 2022


So, do you have some chunking around your tread rib? Or a bulging carcass? Most of us have a pretty good understanding of how tires work and how to tell when they need to be replaced, but there are dozens of words that have a very specific and unique meaning when used to describe tires. Some you may have heard. Others, maybe not.

Even though you may feel like you know everything you need to know about tires, understanding these terms can give you a much better understanding of your tires - and a little knowledge certainly can't hurt. With that in mind, let's take a look of some of the more common tire-related terms and their meanings.

Bead: The part of the tire that is made with steel wires, wrapped or reinforced by ply cords and that is shaped to fit the rim.

Bead Separation:

Bias Ply Tire:

Carcass:

Chunking:

Cord:

Cord Separation:

Cracking:

Groove:

Innerliner:

Non-pneumatic Tire:

Open Splice:

Ply:

Pneumatic Tire:

Radial Ply Tire:

Reinforced Tire:

Rim:

Sidewall:

Tread:

Tread Rib:

Weather Side:

That's just a small sample of the many words used to describe different tires and their components. I'm sure many - if not all - of them were already familiar to you. It's not a bad idea to review the definitions, though, even if you already know all about tires.