The main purpose of those tiny bits of rubber on the tire is…
#3 The Real Question
There are so many things around us that can instantly amuse us. So many questions to ask, so many answers to know. One such question is the purpose of those tiny bits of rubber sticking out of tires.
This might just not be a world changing question but is worth asking. So before knowing answer of this question, you need to know a few more things about usual tires!
These tires are made in very solid Moulds. The mould is provided with vents to let out the air or for pumping the rubber into the moulds. Now the tiny rubber that sticks out of the tire is called a NUBBIN.
Keep reading ahead to know the purpose of Nubbins.
#1 The Purpose
These Nubbins are pulled out with the tire as it is removed from the mould thus, clearing the holes for the next wheel to be moulded. So the reality is that the Nubbins have NO PURPOSE AT ALL.
In fact, you might not find them in the expensive tires. The manufacturers can use some techniques to ensure the production system catches the nubbins using expensive equipment!