Yokohama explains tyre sizes. But in a funny – Normally a boring subject- this time a so not boring way!

Yokohama explains tyre sizes

Yokohama explains tyre sizes


Most people know how tyres are made. Tyres are made from many different parts that are basically stuck together. So, In the trade we call this “vulcanisation”. In other words in order to bond all the various components together. Hence, the not quite finished product needs to be vulcanised. This involves running the tyres through a curing machine. Of course, which bonds all the different components together. Things such as beads, sidewalls and the tread area. This process also adds all the markings and traction patterns on to the surfaces. Such as tyre size and load ratings.

Yokohama explains tyre sizes

Over the years the development of car tyres has become.pretty amazing. Tyres are remarkable things and taken for granted. Thus, no matter how big your car is, it is supported by four patches of rubber. Each not much bigger than your footprint. Despite all the mechanical and computer technology. Now inside a modern car, it is still reliant on good quality tyres. Of course, with decent treads that are filled with the correct air pressure.

Tyre design also includes the ability of the tyres tread to disperse the water quickly enough to maintain a grip on the road. With bald tyres then aquaplaning occurs. Aquaplaning is when a vehicle skids along the surface of the water. Subsequently, giving you very little control over the direction the car is going.

Most drivers will never know anything about tyres, Including the tyre size and sidewall markings. However here  is Jake to explain about it.

Eric Roberts

Toyota Yaris Clutch ProblemYokohama explains tyre sizes

To work out the size of your car tyres’ footprint, you need to know that the area is approximately equal to the car’s weight divided by the tyre pressure. For a 2-tonne car, that means the footprint of each tyre is about 7 inches wide by 4.75 inches long. Not very big at all, and remember, while the brakes work to stop the wheels turning, it is the friction between the tyres’ footprint and the road that will actually stop your car moving.

Of course, everyone will need new tyres at some point. But understanding tyre sizes can be difficult ( and BORING). So we’ve made it easy and fun. Hence, with the help of journalist and tarmac rally ace Samantha Stevens and drift racer Jake “DriftSquid” Jones. Put simply, tyre sizes are written on the tyre side wall. Or on your car’s tyre placard and handbook.

Tyres are measured like this- the width across the tread is in millimeters. The sidewall number (known as the profile or series) is a percentage of the width.Wheel size is measured in inches. Those are the three numbers you need to know — and need to pronounce like Sammy does in the video – to sound like you know what you’re talking about in a tyre shop. And yet, Yokohama has a colour system which makes choosing the right tyre tyre is so much easier than figuring out the size – go to www.yokohama.com.au and see for yourself!