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tyre-size

Ensuring that you get tyres of the correct size is essential for your vehicle's overall performance and driving safety. Your choice of tyres should depend on the driving conditions and preferences as well as the model and make of your vehicle, the temperature, climate and the terrain of the place you will mostly drive in. To make a better decision, you must know the right tyre size for your car. However, it can be difficult to understand the alphanumeric code present on the tyre's sidewall. Hence, KK Tyres experts are helping you understand how to read your tyre size and choose a perfectly fitted pair of tyres for your vehicle.

Where To Find Tyre Size?

    All the makes and models of cars contain an owner's manual, where you can easily find out the recommended tyre size for your car. However, if you are unable to locate the manual, there would be a tyre fitting guide in these locations:

    • Glove box compartment
    • Doorjamb
    • Petrol tank hatch

    Also, you can check the sidewall of the tyres that are currently fitted in your vehicle. The tyre size should be written on it. Once you get to know the correct tyre size for your car, decode the meaning, and begin your search for the right set of tyres for your vehicle.

    Tyre Size Specifications

    Let's take an example of tyre size: 225/45 R18 95H

    Width - The first number in your tyre size code is the width measurement measured in millimetres. In this example, 225 is the width of the radials.

    Please note: Tyre width denotes the measurement of one sidewall to another.

    Aspect ratio

    The next number you see in the code is your tyre's aspect ratio, which determines how tall your tyre's profile is. This is typically measured in percentages. A tyre's height divided by the width of the rim gives you the aspect ratio of tyres. For example, when the aspect ratio of a tyre is 45, it demonstrates the height of the tyre is 45% of its width. Tyres with lower aspect ratios, such as a 45 series, provide better vehicle handling performance.

    Tyre construction

    R in this code indicates the kind of internal construction which maintains your tyre's stability. Generally, two types of tyre construction can be seen on tyre's sidewall:

    R- Radial

    D - Diagonal or Bias Ply

    Rim diameter

    Next number in the series is the diameter code (measured in inches) of the tyre rim on which the tyre can be mounted. For instance, a tyre with the size of 225/45 R18 95H would be suitable for a rim of 18-inch diameter.

    Load index

    It is the next figure you see in the sequence after rim diameter. It depicts the maximum load can the tyre carry when adequately inflated and is typically measured in kilograms. According to the load index chart, 95 here means the tyre can support the weight of 690 kg.

    Speed rating

    The last figure seen in a tyre code indicates the speed rating of the tyre and is indicated by a letter. Like how the load index number of your tyre refers to its load-carrying capability, the speed rating corresponds to the maximum speed limit that the tyre can support. For example, in the tyre size code 225/45 R18 95H, H means the speed index of the tyre is 130mph.

    If you are looking to buy superior quality tyres but are not sure about the tyre size. Contact our friendly experts. They will assist you in finding the right tyre size for your car and can also suggest tyre units that best suit your vehicle considering several factors, such as your budget, driving style, climatic conditions where you live, and preferences.

    We are glad to inform you that we stock an exclusive collection of different types of tyres from leading manufacturers in our inventory. So, book your choice of fleets now! Browse through our website to know more about our mobile fitting service as well.

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