We can find tiny rubber hairs on tyres' outer surface.
These are also known as vent spews.
Why tyres have tiny rubber hairs ?
In the process of producing tyres, raw rubber is placed into a moulding machine and air pressure is used to force the rubber to turn into tyres' shape.
Moulding machines have small vent holes that allow air to escape. With thisair tiny bits of rubber also escape through this vent holes resulting intiny hairs on outer surface.
This is the byproduct of manufacturing the tyres correctly.
When the tyre is manufactured, these vent spews are of no use.
They don't affect tyre's performance by any means.
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