Tyre Size Information
Tyre size is located on the sidewall of your tyre. You will notice a series of numbers and letters on your tyre (e.g. 215/60R16 95H).
How to read your tyre size
Overall width of the tyre in millimeters
Height of the tyre sidewall as a percentage. In this case, the height of sidewall is 60% of 215mm
What is my tyre size?
The tyre size is one of the most important specifications to consider when selecting new tyres. To read tyre size of your vehicle, look for the combination of numbers and letters on the tyre’s sidewall.
For example, 215/60R16 are the numbers that represent the tyre size and has a section width of the tyre of 215 millimetres, an aspect ratio of 60 (which means 60% of 215mm) and fits a wheel rim in inches of 16-inch.
Wheel size, rim size, and tread width are all important factors when considering choosing the right tyre for your vehicle.
It is essential to select the appropriate tyre size to ensure proper fit and performance. Using the wrong size tyre can lead to safety issues, such as reduced handling and stability, and increased wear on the tyre. Often a tyre size chart is used by tyre fitters to provide further information on the various sizes and specifications. This helps in choosing the correct tyres that CAN BE fitted to your vehicle.
WHAT TYRES SHOULD I CHOOSE?
There are a number of factors you should consider when purchase your tyre:
What factors should I consider when purchasing new tyres?
Car tyres specifications and tyres in general play a crucial role in determining a tyre’s performance, lifespan, and safety. When selecting new tyres, it is essential to consider a variety of factors, including tyre size, load index rating (maximum weight a tyre can support), speed index rating (maximum speed at which a tyre can safely operate), tread depth, tyre construction, driving conditions and tread design.
The diameter of a tyre
The overall diameter of a tyre is the measurement of the distance from one end of the tyre to the other, including the tread and the sidewall. This measurement can vary depending on the size and design of the tyre, and it is important to ensure that the overall diameter is suitable for the vehicle’s make and model. A tyre with an incorrect overall diameter can cause issues with speedometer accuracy, handling, and performance. It can also put additional strain on the vehicle’s drivetrain and suspension components, leading to premature wear and potential safety hazards. Therefore, it is essential to choose the right tyre size and diameter to ensure the safe and efficient operation of the vehicle.
The sidewall height of a tyre
The sidewall height of a tyre refers to the distance between the rim of the wheel and the outermost edge of the tyre’s tread. This measurement is typically represented as a percentage of the tyre’s width, known as the aspect ratio. A tyre with a larger aspect ratio has a higher sidewall, while a lower aspect ratio corresponds to a shorter sidewall.
The tread depth
The tread depth is the measurement of the tyre’s rubber that is in contact with the road surface. Tread depth is an essential specification to consider as it affects a tyre’s ability to grip the road and provide traction. As the tyre wears, the tread depth decreases, reducing the tyre’s ability to grip the road surface. When the tread depth reaches a certain point, the tyre should be replaced to ensure safety.
Tyre performance - What you need to know
The performance of your vehicle is subject to the tyre being correctly fitted and regular maintenance. The recommended inflation pressures for your tyres can be found on your door jamb. This also helps ensure that a tyre’s maximum load capacity is not compromised.
The maximum load capacity of a tyre refers to the amount of weight that a tyre can support safely under ideal conditions. It is important to select a tyre with a maximum load capacity that is suitable for the vehicle’s weight and intended use.
Tyre construction is also an important factor to consider when selecting new tyres. There are two main types of tyre construction: radial ply construction and bias-ply. Radial tyres have become more popular in recent years and are designed to provide a smoother ride, better fuel economy, and longer tread life. They have a single layer of steel belts running from bead to bead, providing stability and strength. Bias-ply tyres have been around for many years and are designed to provide maximum strength and durability. They have multiple layers of nylon or polyester cords running diagonally across the tyre, which provides excellent load-carrying capacity.
Types of vehicle & driving conditions
Choosing the correct and specific tyres for every application is important.
For example, if your vehicle is going to be in more off-road conditions then a Mud Terrain tyre would be more appropriate, should you require more performance on the road then choosing a tyre with a cornering grip is a better choice.
Tread patterns refer to the tyre’s tread design which includes the tread block, grooves, ribs and sipes. They are designed to enhance the grip, handling, and stability for specific conditions.
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