Most people assume tyres are just made from rubber and
filled with air, very little they know about the complex structure and
different materials used that make it up. The essential components are
shown in the diagram above. We have given a brief description of these
components and their function. Some components are apparent like the
tread and sidewall however there others that are hidden. Nowadays tubes
are a thing of the past and tyres come with the tube like rubber fixed
to the inside this is called the inner lining and shown in the picture
above as inner liner. The sidewall helps makes it rigid and protects the
carcass, this in turn improves the ride quality general y speaking a
larger sidewall tyre i.e.| that his higher in profile is a lot more
comfortable than a low-profile one as it has more flex in the sidewall
and hence absorbs the road imperfections better.
The tread is the main contact part with the road, tread
designs are different and they are evolving and improving. The
objective is to create a tread design that will give better grip in all
weather conditions and cope with the demands and stresses that are put
on the tyre in all driving.
The bead is what secures the tyre to the rim. It?s made up of a beaded wire and rubber core. This is part of the sidewall.
Steel wire or a textile fabric makes up belt, its main
job is to reinforce the structure protecting it from impacts sustained
on the road.
A tyre needs to offer good heat dispersal and for this
the tyre shoulder section plays its part. The shoulder is the edge of
rubber on both sides.
The tyre carcass has to resist the stresses caused by
constant pressure of the forces that occur in acceleration, braking and
changing direction, for this the inner cord must support the weight and
The chafer protects the cord as it appears on the rim wheel the chafer is the lining between the tyre and the rim.