Low angle side view of car rushes along the highway at sunset

Sidewall is an important part of car tyres. The health of this part is essential for the strength of a car tyre. Tyres have to function in unfavourable road and weather conditions. Moreover, hard and sharp objects play a vital role in damaging your tyres as well. Furthermore, ageing takes place in tyres gradually as well.

Because of these reasons, your tyre treads and sidewall face several issues. These issues occur to affect the health and performance of Car Tyres Reading.

This blog is about two prime abnormalities called cracks and bulges. These abnormalities take place mainly in the sidewall.

The sidewall is an important part of your tyres. Therefore, you should deformation in this area as a warning sign. Generally, damage in the sidewall is not repairable. Therefore, you have to change your car tyres as soon as possible because of tyre cracks and bulges.

What are the cracks on the sidewall?

Cracks take place in the sidewall area because of several reasons. In the initial stage, tyre cracks seem small. Gradually, they increase their size to reach the tread area. In this condition, they are extremely dangerous for the internal strength of car tyres.

Wider and deeper cracks in the sidewall and tread area indicate that the tyre rubber is not in good condition. Cracks on the tyre sidewall take place due to the hardness of the tyre rubber. Extremely hard tyre rubber is not good for the gripping power of car tyres.

Possible reasons for cracking sidewall

First of all, cracks take place in tyres because of ageing. Ageing is a natural process in which tyre rubber gradually loses its flexibility. The flexibility of tyre rubber is an essential feature of tyres. It provides proper grip and traction on both dry and wet roads.

Fortunately, you can detect the warning sign in the form of a cracking sidewall to make a quick decision to change your existing tyres.

Rubber is a carbonic compound. Therefore, its degradation is a natural process.

Even if you store your tyres in a safe place for a long time, degradation of rubber will take place steadily.

Many factors increase the rate of ageing in tyres.

These factors are sunlight, heat, UV rays, oxygen, ozone, water and chemicals.

Why are cracks risky for tyres?

Minor cracks should not increase your blood pressure. However, you must check the sidewall to be aware of the changes in the condition of the tyres.

Larger and deeper cracks are not good for car tyres. They can reach the internal structure to cause serious damage. Moreover, they can cause issues like blowouts at any time.

Can you repair tyre cracks?

Repairing the entire rubber of the tyres is not possible. As mentioned above, the entire rubber of tyres faces ageing to show cracks on the sidewall. So, changing the tyre should be the only solution in your mind.

What should you do fix the problem?

Preventive steps are possible to reduce the process of ageing. You can save your tyres from factors like heat, sunlight and chemicals. Moreover, maintenance steps like snow driving, checking air pressure and sensible driving are some other preventive steps to decrease the rate of cracking.

After observing cracks, you must change your tyres. You do not have other solutions.

What are sidewall bulges?

Bulges take place usually in the sidewall area because of impact. Hitting a pothole, kerb or other hard object causes serious fault in the internal parts of tyres. Internal damage promotes leakage of air. The presence of a pothole is an indication of internal leakage of air.

A tyre may show one or multiple bulges on the sidewall.

Possible reasons for bulges

Bulges may take place in the tyre sidewall for several reasons:

  • Hitting a pothole or kerb
  • A road accident
  • Manufacturing defect

If you observe bulges on the sidewall of new tyres, this indication is possible because of a manufacturing defect. A road accident increases the possibility of the formation of a tyre bulge. You must check your tyres with the help of a mechanic after a minor or major accident.

Dangers of sidewall bulges:

The presence of a tyre bulge is not good for the performance and strength of a car tyre. Bulges are similar to time bombs that may burst at any time.

Do not drive your car on bulged tyres. You must change your tyres after observing bulges on their sidewall.

Can you repair the tyre bulge:

A bulge is just an indication of internal damage and leakage. You cannot repair a tyre bulge with the help of temporary fixes. If you want a permanent solution, replace the faulty tyre with a set of new tyres.

If you have to drive your car on a tyre with bulge, decrease the speed of your car. The fast speed of the vehicle is extremely dangerous if a bulge is present on your tyre.

Moreover, high air pressure is not an ideal condition due to the risk of a blowout.

Final words

In brief, cracks or bulges on the sidewall indicate that tyres are not in good condition. Repairing cracks or bulges are not possible but these are only signs of internal changes taking place in the tyre. Therefore, changing the tyre will be a good decision.

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