Tyre tread erosion is perhaps the most common issues which car owners face. Constant erosion creates a need for routine tyre replacements. But do you know that there are many things you need to consider before replacing your car’s old tyres?
For starters, you need to know the suitable set of tyres as per specifications apart from the different types of tyres according to their use. These are also known as tyre code or sidewall markings.
A standard format in which this codes or markings are written is ‘225/55 R 17 97 W’. Consider this just as an example. For your ease, let’s formulate it as ‘X/Y R D L S’. Read along to know what each of these values signifies and how they are essential for your selection.
Everything You Need to Know About Tyre Codes:
- X/Y
Here X denotes the tyre width. Tyre width is the measurement from one sidewall to the other. Most often it will be a three digit number, and it represents the width in millimeters. Tyres meant for off-roading conditions will require wider treads for maximum traction. So, when buying 4×4 Tyres in Coventry or anywhere else in the UK, it is always better to check if they are of appropriate width.
Y represents the ‘Aspect Ratio.’ This is the ratio of the height of a tyre to its width. For example, an aspect ratio of 55 means the tyre height is equal to 55% of its width. Higher aspect ratio denotes means sidewall. Now, why is this important? It’s because the aspect ratio affects steering stability. Shorter sidewalls mean less time for the steering input to reach the tyre tread. It can be both a good or bad thing. Shorter sidewalls also mean more unexpected shocks and bumps on your vehicle’s body.
- R
In modern times this value does not have much significance, as almost all tyres are of Radial ply construction.
- D
This value indicates the nominal diameter of a wheel rim. It is the measurement of the wheel from one point in its circumference to its opposite end. This value tells you the size of the wheel the tire is intended to fit. For example, a tyre code like 215/65 R 15 means the tyre will fit perfectly in a wheel of 15-inch diameter. This value should match your manufacturer specifications under any circumstance. It is advisable to measure your wheel before buying a tyre.
- L
The number in this fragment is the load index. Load index number is a numerical code, and it stipulates the maximum load each tyre can carry. For example, a load rating of 97 means a tyre can carry a maximum weight of 730 Kg. You should fit tyres of appropriate load index as per your manufacturer recommendation. However, you can fit a tyre of a higher load index than OEM recommendations if you know you’ll have to load your car more.
- S
This alphabet is also a code, which denotes the maximum speed the tyre can endure. For example, a speed rating of W indicates the tyre can withstand speeds of up to 230 miles per hour.
With this knowledge, you will be able to select the perfect tyre that fits your purpose. However, you can consult expert technicians to ease things out. For expert advice and the best Tyres in Coventry, visit Central Point MOT. They are famous for stocking the best range of tyres from well-known brands of the world.
For more information please visit here:- MOT in Coventry
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