Why are there small thorns in new car tyres, what is their benefit?
We all know that for safety reasons we should replace our old or worn out tyres. Many of you might have noticed that new tyres have small rubber spikes. These spikes are not hard but soft but appear protruding.
These spikes on the tyres are called by many names. Some people call it 'nib', while some people call it 'nippers' or 'spikes'. You might have never wondered why these thorns are there in the tyre? Do they have any function or are these spikes present on the tyre just like that?
Actually, when the tyre is manufactured, these spikes are formed automatically. They are not manufactured or fitted separately. First of all, liquid rubber is poured into the mould. Air pressure is used to spread the rubber throughout the mould. In simple words, due to heat and pressure together, air bubbles start forming between the rubber and the mould.
The formation of air bubbles while making tyres can affect its quality. Therefore, pressure is also created to remove these air bubbles. When the air pressure expels the air inside the rubber through small holes, a small amount of rubber also comes out along with the air. This rubber also dries up when it cools down.
After the tyre is made and removed from the mould, these spikes remain stuck on the tyre. Spikes mean that the tyres are brand new and have not been used yet. These thorns or nails in the tyres have no use. They are just a part of the manufacturing process. Even if someone cuts them before installing new tyres in the vehicle, it will not be of any special benefit, rather it can cause harm.
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