Functions And Importance Of Tyre Tread Depth

Tyres play an important role in road safety and driving comfort. However, the performance of your vehicle depends on the functions of various components, but tyres have their own place to keep your vehicle stable.

Tyres are made up of several parts including bead, plies, tread, and sidewall. Among these components, only the tread part touches the road surface directly.

You will see different tread patterns in varied tyre types. These patterns determine the goals and functions of those tyre types. For example, a directional tread pattern is very effective to save your car tyres London and vehicle from hydroplaning.

Tread depth has lugs, voids, blocks and sipes to help your tyres to maintain a proper grip on the road surface.

When you buy your new tyres, they come with a certain tread depth. Tread depth is the depth of the grooves. This is a very important factor to determine the performance level of your car tyres.

If you want to drive safely on roads, you need to maintain the tread depth. Do not ignore this maintenance to avoid future circumstances.

Your tyres are able to hold the road because of their tread pattern. Moreover, the tread pattern is effective because of its design and tread depth. Correct tread depth will help the tyre to remove water in wet conditions.

In fact, the tread depth is vital for the following functions:


Stopping Distance:

The correct depth will ensure that your tyres stop your vehicle at the right distance when you use your brakes. As you know, sometimes quick braking is necessary and you have to rely on the ability of your tyres in these conditions.

In simple words, your braking distance depends on the tread depth of your tyres. Therefore, bald tyres usually struggle on roads to make a proper grip.

Grip & Traction:

Your vehicle makes its grip on the road surface with the help of tyres. Tyres in a vehicle maintain proper grip and traction on roads with the help of tread depth. The tread depth goes down over time. This condition reduces the ability of car tyres to hold the road surface.

Wet Performance:

Another key feature of tyres is providing stability and control on wet road surfaces. The tread depth helps the tyres to make proper grip on standing water. Bald tyres are very dangerous on wet roads. The chances of hydroplaning are always higher if you are driving with tyres that are completely or partly bald.

As you see, functions of tread depth are extremely important for the functions of your tyres. New tyres come with optimum tread depth but there are a lot of factors that decrease the tread depth to make tyres ineffective.

Mainly the following factors are responsible for tread wear:

Road Conditions:

Tyres run on the road surface at a high speed. Therefore, friction and heat take place to cause tread wear. Friction is the main culprit to promote tread wear. Therefore, friction increases the rolling resistance of car tyres. Tyres with high rolling resistance will wear out quickly.


If you have loaded your vehicle excessively, your tyres will generally have more friction due to extra pressure on their body. Due to friction and heat, they will wear out at a faster rate.


Hot and cold weather is not favourable for your tread depth. Therefore, you have to buy seasonal tyres to reduce the chances of damage.


Treadwear is a natural process that you cannot stop. Your tyres will age and tread wear is a common warning that they will show at the end of their lifespan.

Whenever you observe the signs of tread wear, change your tyres since repairing tread wear is not possible.

Use a tread depth gauge or simply a coin to measure the tread depth. Nowadays, tread wear indicators also come with modern tyres. If these indicators are visible, it clearly means that your Tyres Watford are experiencing severe tread wear. Change your tyres in this condition instantly.

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