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Why Tyres Have Tiny Rubber Hairs? Useless Or Secret To Better Mileage - 'Mystery' Solved
Tiny Rubber Hairs On Tyres' Outer Surface: The tiny rubber hairs on the outer surface of tyres are technically known as vent spews, created during the manufacturing process. They are also called sprue nubs, tyre nibs, gate marks, and nippers.
Tyres Tiny Rubber Hairs
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However, whatever you prefer to call them, they neither help to increase the mileage of the vehicle nor have any other function on the tyre. So, are vent spews useless? Well, to answer that we need to take a look at the tyre manufacturing process.
Tiny Rubber Hairs On Tyres
In the process of producing tyres, raw rubber is placed into a molding machine and air pressure is used to force the rubber to turn into the tyres' shape.
Why Tyres Have Tiny Rubber Hairs?
The molding machine has small vent holes that allow air to escape. With the air, tiny bits of rubber also escape through the vent holes, resulting in vent spews.
Tiny Rubber Hairs On Tyres' Outer Surface
It helps to make tyres durable. Therefore, it can be said that the formation of vent spews is the byproduct of manufacturing the tyre correctly.
Vent Spews
Once the tyre is manufactured, vent spews have no use. They don't affect the tyre's performance by any means.
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