 Few
people realise how important tyres are. They are your car's
main shock absorber and their quality and performance is a
major factor in your car's safety, control, cornering, traction,
ease of steering and even fuel efficiency. Many world famous
tyres like Bridgestone, Michelin and Pirelli will soon be
available but before you rush off to buy them correct some
popular misconceptions.
Myth 1.
Big fat tyres make a car look big and powerful. Wrong! It
may make you feel macho but it's a dumb thing to do to your
car. The heavier the tyre, the worse will be the pickup, the
ride and the road holding because it increases the weight
below the springs. Too much extra traction can also damage
your gears or differential. Big tyres only make sense if you
are carrying big loads but if they do not perfectly fit the
rim they can be dangerous and can damage the tyre.
Myth
2.
Chromed Mag wheels make a car look great. Right! These light
new wheel rims are smart and expensive and they do improve
a car's performance. The less the weight below the springs,
the better will be the road holding and acceleration. You
must, however, ensure that these new wheel rims are perfectly
matched to your tyres.
Myth 3.
Perfect
wheel rims are not important. Wrong! They are absolutely vital
for the ride and safety for every tyre and car. On Indian
roads, the rims occasionally get damaged by deep potholes,
accidents, hitting stones left on the roads, pavements or
other hard objects. Most people do not bother to get them
fixed. It is now an easy process for which there are hundreds
of repairers in any city.
Myth
4.
Ordinary tyres are as good as radial tyres. Wrong! Radial
tyres have a flat belt, which keep the tread flat and firmly
on the road while cornering. This improves road holding and
tyre life. The improved traction also improves acceleration
and fuel consumption while the woven steel belt reduces punctures.
Radial tyres also have softer sidewalls resulting in a softer
and more comfortable ride.
Myth 5.
The soft sidewall of radial tyres can easily get cut. It is
true that that this can sometimes happen but in most cases
the damage to the sidewall is the result of a sharp drop on
the side of road that can cut the inside of the tyre when
the car tries to get back on the road. This is easily avoided.
When you have to get off the road do not get back on the road
gradually. You should cut the steering wheel sharply inwards
so that the wheel tread and not the sidewall hits the sharp
edge of the road.
Myth 6.
Radial tyres do not give more mileage. The mileage depends
on the car, the loads, the driver and the tyre as well. A
standard tyre should give over 30,000 kms and a radial about
50% more.
Myth 7.
Tubeless
tyres are unsuitable for Indian cars. Tubeless
tyres have virtually replaced tyres with tubes around the
world because, like mag wheels, they reduce the weight below
the springs. In India, however, most tyre repairers have not
yet learned the simple method of how to fix them and people
do not want to take the risk of having a flat they cannot
easily repair. A tyre repairer only needs a pump that can
inflate to double the normal pressure to get a good sealing.
There is also need to ensure that the rims are perfect.
Myth 8.
Wheel balancing is unnecessary. The wear and tear on tyres
is not even and sudden braking can rub off small patches.
Wheel balancing roughly every 5,000 kms or so can make a huge
difference to your car's safety, comfort and road holding.
Myth 9.
Imported tyres so much softer than desi ones. India's tyre
companies can match any specification but they usually produce
tyres that people want with more tread rubber for long life
instead of light tyres that are better for road holding, ride
and comfort. With more sophisticated cars coming onto the
roads, discriminating buyers may begin to go for the new lighter
and softer tyres even though these may slightly reduce the
mileage.
Myth 10.
The little caps on the tube nipples are a useless gimmick.
These little caps keep out the dust and dust is a big enemy
of a tyre. Dust is blown in whenever the tyre is inflated
and they cut or line the soft rubber core of the valve allowing
air to slowly escape. Tyres with the caps can usually hold
pressure for two to four weeks and those without caps may
need checking every few days.
Myth 11.
The
specified Inflation pressure must always be maintained. Tyre
pressure goes up about 10 to 15% when they heat up resulting
in a harder ride and lower traction but a bit extra air pressure
before a long journey reduces this tendency to heat up. Fuel
consumption will be better with slightly high pressure and
will increase if pressure is too low. A slightly lower pressure
is, however, recommended to improve traction if there are
icy or skiddy roads. Radial tyres always look slightly underinflated
and increasing pressure will reduce the tyres footprint or
contact area.
Myth 12.
Retreaded
tyres are as good as new ones. Retreads do cost half the cost
of a new tyre but there is a big sacrifice in safety, comfort,
ride and tyre life. You only see the tread and never know
the state of the tyre's carcass. It may be old and decayed
and suffering from many kinds of damage that the eye cannot
see. These may suddenly appear and cause trouble and even
an accident. A complete set of new tyres only costs about
10 paise per km over its lifetime. A small price for your
comfort and safety.
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