first case shows a tyre with its tread separated from its casing. Could
this have been a manufacturing defect? Yes, provided the tyre was not
over six years old, as in this case. The tyre was manufactured in 1994,
but was sparingly used, thus the tread was not worn out but the casing
deteriorated and when subjected to speeds above 130kmph, literally tore
out in chunks. Thanks to radials, the owner was able to control the vehicle
to a slow stop.
second case you will notice again the tyre has suffered a tread/belt separation.
This too can be attributed to a manufacturing defect. Unfortunately the
owner had purchased this imported tyre from a dealer who sold him a defective
is very clear from the fact the specific markings, which give the authenticity
of a tyre has been buffed off. Secondly the speed rating of the tyre was
'S' (160kmph), while the vehicle was a Mercedes, capable of being driven
at speed of over 190kmph. We asked the owner to replace them with a 'V'
rated tyre, for safer driving.
we see a tyre,
which may have suffered an impact before it entered the highway. This
tyre was a tubeless type but was fitted with a tube. Now the tyre must
have absorbed the impact but the tube did not.As the tyre flexed, heat
generated within and after the near completion of the journey the tube
gave way rendering the tyre useless. The damage of the tyre and tube can
be clearly seen. Moreover the nature of impact is also visible at the
The fourth case,
I would like my readers to see how a nail penetration has caused this
tyre to fail and by the time the vehicle could be brought to a standstill
the tyre was ruined.Here again I would say that the owner has been lucky
to use a radial, as although his tyre was wrecked he was able to come
back with his story safely to us.
my last case we see a tyre which has more than 60,000km logged on it.
The life of the tyre was virtually over, as the tread depth had already
reached its 'TWI' (Tread Wear Indictor) marking or had only 1.6mm tread
depth left. Yet the owner was reluctant to replace his tyres and as luck
would have it on his return after a weekend at Lonavala, the tyres developed
a belt distortion. The only solution for him was to replace the entire
With faster cars and better road conditions, the need for speed keeps