Effects of Over Inflation
A tire that is over inflated rides on just the centre portion of the tread. This causes
premature wear in a distinctive pattern. (See Figure 2, ìCentre wear.î) The smaller
contact patch means reduced grip on the road causing handling problems such as
poor steering and stopping. Although higher tire pressure could mean lower rolling
resistance and therefore lower fuel consumption, there is a limit ñ higher tire
pressure also leads to a harsher ride, potential increased wear of steering and
suspension components, and reduced tire life. Tires are designed to give their best
operating performance on any specific vehicle at the inflation pressure shown on
the vehicle information placard. This recommended pressure should be respected.