What is the anatomy of a tyre?

Tire are not just a homogeneous glob of well-molded rubber, but a high-performance composite of various materials, designs and techniques used to blend the different materials into a single circular object. As a result, various components make a typical tire and are discussed below.

Airtight synthetic rubber liner

The inner liner of a tire is usually a special air-tight rubber lining that is attached to the inner side of the tire, instead of using a tube. This feature is most common in modern tubeless tires which are constructed using a virtually impermeable lining of rubber.


This is the most obvious and commonest part of a tire structure that provides the surface area where the rubber is in contact with the ground. Different tires are designed using various tread patterns, usually depending on the intended use of the tire. Treads provide grip to ensure the stability of a car and allow for efficient braking. This part of the tire is responsible for resisting abrasion, impacts, cutting and withstand high temperatures.


This provides the most important part of a tire lying underneath the treads. The carcass is built of fiber cords or steel running from bead to bead in the tire. Each tire is either radial ply or bias ply. Bias plies are then laid at an angle in a direction while radial plies are directly laid side by side. Apart from just supporting the weight of a car and its components, the tire carcass also resists fatigue resulting from constant flexing.


This part of the tire is used for displaying important tire information. This part is, however, more important than just being an indicator. Almost all the load support of a car or bike and most of the handling is influenced by the design of the sidewall. The sidewall also adds rigidity to the tire structure, protecting the carcass as well as improving the quality of ride by allowing for expansion of the tire and compression with the terrain.


This is where the tire is mounted on the wheel. In this area, multiple steel cords are well placed to ascertain a snug fit against the surface of the wheel and that no leakage for the case of tubeless tires. The bead, therefore, fixes the tire of the car to the rim as well as securing the end of the tire cord.

Tire belt

The tire belt is composed of a textile fabric or steel wire. THIs component of a tire acts as a reinforcement that is used to reduce the impacts sustained while driving as well as helping maintain stability through widening the treads that are in contact with the surface of the road.

Tyre anatomy

Tire groove

This is a channel within the tire treads that is used to improve driving stability, braking ability and pulling ability of the car as you drive.

Tire shoulder

This is a section from the tread’s edge to the upper end of the sidewall. This part is purposed to provide good heat dispersal from the tire as the tire moves.

All these parts of a tire provide smooth and comfortable rides in your car. However, regular checking and maintenance and thus such measures as proper inflation and changing of tires as treads wear out to ensure proper braking are important for your car.