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Bike tyre sizes may seem like a cryptic code at first glance, but understanding how to read them is crucial for selecting the perfect tyres for your two-wheeler. Whether you're a seasoned rider or a novice, deciphering the numbers and letters on your tyre sidewall can make all the difference in your riding experience. In this article, we'll explain tyre sizes and provide a step-by-step guide on how to read tyre size like a pro.
The first step in understanding bike tyre sizes is to locate the size information on your tyre's sidewall. You'll typically find a sequence of numbers and letters that looks something like this: 100/90 R17. Let's break down each component:
100: This number represents the width of the tyre in millimetres, measured from sidewall to sidewall.
90: This is the aspect ratio, which is the height of the tyre's cross-section as a percentage of its width. In this case, the tyre's height is 60% of its width.
R: The letter "R" stands for radial construction, indicating that the tyre's layers run radially across the tyre.
17: This is the diameter of the wheel rim in inches.
One of the most important factors to consider when choosing tyres is the aspect ratio. A higher aspect ratio means a taller sidewall, which can provide a more comfortable ride but may compromise handling. Conversely, a lower aspect ratio results in a shorter sidewall, offering better handling and cornering but a firmer ride.
To calculate the tyre's sidewall height, simply multiply the width by the aspect ratio percentage. For example, a 100/90 R17 tyre would have a sidewall height of 90 mm (100mm x 0.90).
In addition to the tyre size explained above, you'll also find a load index and speed rating on your tyre's sidewall. The load index is a numerical code that indicates the maximum weight the tyre can support when properly inflated. The speed rating, represented by a letter, denotes the maximum speed at which the tyre can safely operate.
It's essential to choose tyres with a load index and speed rating that match and not exceed your vehicle's requirements to ensure optimal performance and safety.
If you're unsure about which tyre size to choose for your bike, refer to a tyre size chart. These charts provide a comprehensive list of tyre sizes suitable for various bike models and riding styles. Simply find your bike's make and model, and the chart will recommend the appropriate tyre sizes for your needs.
If you're still unsure about how to measure tyre size, you can always refer to your current tyres. Use a tape measure to determine the width and height of your existing tyres, and make note of the wheel rim diameter. This information will help you find a suitable replacement when the time comes.
Now that you know how to read tyre size, it's time to consider your riding style and preferences. Different tyre sizes and tread patterns cater to various riding conditions and purposes. For example, if you frequently ride on wet or slippery surfaces, you may want to opt for tyres with deeper treads and a higher aspect ratio for better traction and stability, like the Eurogrip Remora tyres.
On the other hand, if you prioritise speed and agility, a lower aspect ratio and a more aggressive tread pattern might be the way to go, like the Eurogrip Protorq Extreme. The right tyre choice ultimately depends on your specific needs and riding habits.
When it comes to selecting high-quality tyres for your bike, Eurogrip is a name you can trust. With a wide range of bike tyre sizes designed for various riding conditions, Eurogrip offers tyres that prioritize safety, durability, and performance.
If you're still unsure about which tyre size is best for your vehicle and riding style, visit the Eurogrip website. Under the "Find My Tyre" section, you can easily find the perfect tyre for your needs, ensuring a seamless and enjoyable riding experience.
Understanding how to read tyre size is an essential skill for every bike owner. By decoding the numbers and letters on your tyre's sidewall, you can make informed decisions about which tyres are best suited for your riding style and conditions. Remember to consider factors like aspect ratio, load index, size, speed rating, and tread pattern when selecting your tyres.
With this comprehensive guide on tyre size explained and the help of trusted brands like Eurogrip, you'll be well-equipped to choose the perfect tyres for your two-wheeler. So, the next time you're in the market for new tyres, refer to this article and confidently select the right bike tyre sizes for an optimal riding experience.