Find tyre size

We, at Roadcircles, have curated this guide on car tyre size to help you make an informed decision when buying tyres. Take a look:

It is an alphanumeric code embossed on a tyre’s sidewall. This code indicates the dimensional as well as structural details of a tyre. Every automobile has a prescribed tyre size, which must be strictly adhered to for the efficient functioning of the vehicle.

For a clearer understanding of the same, allow us to present an example:

Let’s take 185/60 R14 82H as a sample car tyre size. Here, the alphanumeric code reveals the following information:

185: This figure stands for the width of a car tyre’s sidewalls measured in millimetres. This number remains the same in both the sidewalls.

60: The second component stands for the height of a tyre, called the aspect ratio. It is the percentage of the tyre’s width.

R:This alphabet implies that the tyre has radial construction.

14: It is the diameter of the wheel rim, expressed in inches.

82: This number stands for the load index of a tyre. It denotes that the tyre can carry up to 475 kilograms of load.

H: It is the speed rating of a tyre, which implies that the tyre can speed up to 130 mph.

Here, motorists may not be familiar with terms like ‘load index’ and ‘speed rating’. So, these are defined below:

Load index: It is the maximum weight that a tyre is engineered to carry. For example, tyres indexed at 70 have a maximum load capacity of 335 kilograms.

Speed rating: It refers to the highest speed that a tyre can tolerate at full load.

You can place an order with us online on our website. To do so, simply enter a few details on our website, select the tyres, make the purchase and choose from our list of partners for tyre fitting.