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How to Measure Your Tyre Size for Online Purchase?

19 July 2024
How to measure your tyre size for online purchase?

Buying tyres online can be a convenient and cost-effective option, especially if you have time to plan your next tyre replacement in advance. However, one of the biggest concerns for people buying tyres online is getting the size right.

While measuring a tyre is quite straightforward, it can still lead to confusion among people who are not well-versed in tyre care or vehicle maintenance. If you too are a first time tyre buyer, online or offline, we are creating a post just for you. This blog will guide you through the essential tyre measurements and how to interpret them when shopping online.

Finding Out the Tyre Size

The first thing to do is to look at your car's or motorcycle's tyre and determine the size that you need. It's the easiest way to find out the tyre size. The tyre size is mentioned on the sidewall. The marking will read something like 215/60 R16. Once you have this tyre code, you can go online and search for tyres that match this description.

Before we move on, here’s a quick explainer for reading tyre markings:

  • Width: This is the first number in the sequence and represents the width of the tyre in millimetres, measured from one sidewall to the other.

  • Aspect Ratio: The second number, separated by a slash, indicates the height of the sidewall as a percentage of the width. A lower aspect ratio means a shorter sidewall.

  • Construction: The letter "R" usually signifies radial construction, the most common type of tyre construction for passenger vehicles. For example, the Apollo Alnac 4G for cars and the Apollo Tramplr for motorcycles are both radial tyres.

  • Rim Diameter: The number following the construction indicates the diameter of the wheel rim in inches.

  • Load Index: This is a number that represents the maximum load a tyre can carry when inflated to its maximum pressure.

  • Speed Rating: A letter that indicates the maximum speed a tyre can safely carry.

Tyre Size Example: 215/60 R17 96H

Here’s an example of measurement code you will find on Apollo Apterra Cross compact SUV tyres for better understanding:

  • Width: 215 millimetres

  • Aspect Ratio: 60% (the sidewall height is 60% of the width)

  • Construction: Radial

  • Rim Diameter: 17 inches

  • Load Index: 96 (maximum load of 710 kilograms per tyre)

  • Speed Rating: H (maximum speed of 210 km/h)

But What If You Are Planning a Tyre Downsize or Upsize?

Well, in that case, speaking to a tyre expert is one of the first things you should do because tyres are a technical product. They are made to the specifications of your vehicle, its suspension system, and weight distribution. The design is such that the tyres can optimally handle your vehicle’s driving on highways, off-road tracks, and in different weather conditions. So, if you change tyres without proper knowledge, it can compromise the riding quality of your vehicle.

Quick Tips for Online Tyre Shopping

If you are buying tyres online for the first time, a few extra checks can help you make a more informed decision. Here’s how,

Checking Your Vehicle’s Manual

The recommended tyre sizes for your car or bike are specified in the owner’s manual that comes with your vehicle. Just in case you are thinking about an upsize, the manual may also cover additional tyre sizes which are compatible with your vehicle and stock rims.

Use Online Tyre Finders

If you are unable to find the tyre size in the manual, or have misplaced it, you can also refer to online tyre finders. Incidentally, we too have one on our homepage, where you can search tyres by size or by your vehicle’s make and model.

Verify Compatibility

Tyres are a sizable investment, especially when you are buying a full set. So, before making the purchase, double-check all specifications, and read the returns and replacement policy of the platform before placing your order.

Buy Online, Fit Offline

The next and final step is to get the tyres mounted on your vehicle. Tyre fitment can be complimentary or it may cost extra, it usually depends on the online tyres shop you are using. For instance, at Apollo Tyres online shop, we offer a buy online, fit offline model. Once you place your order, you are directed to book an appointment at an authorised tyre shop near your location. Simply, visit the shop for hassle-free fitment and wheel balancing and alignment checks, and you are done.

The “buy online, fit offline” model also acts as a check against accidental purchase of misfitting tyres. Just in case you purchase the wrong tyre size, the issue can be identified by the dealership and be rectified before fitment.

In Conclusion

By understanding tyre measurements and following these tips, you can confidently purchase the right tyres online for your vehicle. Remember, choosing the correct tyres is essential for your safety, fuel efficiency, and overall driving experience.

Ready to make your purchase? Visit our homepage or use the search bar to get started.