Page 54 - BRIDGESTONE PR REPORT - JULY 2025

7/3/25, 10:30 AM Latest News
and the vehicle's dynamic behaviour is worse.

To avoid all these problems, it is best to check the tyre pressure (when cold) once a month or before a long
journey. The manufacturer's recommended tyre pressure is given in the vehicle handbook.

Do not rotate tyres to extend tyre life

Front and rear tyres are subjected to different work and loads, so wear is very uneven. Rotation is essential

to achieve more even wear and thus increase the service life of all tyres. Even and regular tyre wear on both
axles of the vehicle contributes to increased safety on the road, the axles react

in a balanced way and the driver has better control of his vehicle. It is advisable to rotate them between axles
every 10,000 kilometres (or as stipulated by the manufacturer).

Excessive or uneven wear

Regardless of a tyre's service life, its tread depth should be checked from time to time. According to the law,
it must have a minimum tread depth of 1.6 mm, a legal limit that is referenced by the wear indicators, marked

by an indicator in the shoulder area of the tyre. One trick to check for wear is to insert a euro into the tyre
tread: if you can see the gold edge, it is time to change it.

Equally important is to check that the wear is even. Front axle tyres, because of the configuration of the

vehicle, usually show uneven wear between the outer and inner shoulder. A tyre that is in good condition on
the outside may be ‘eaten’ on the inside.

Other irregular tyre wear, resulting in a less than optimal contact patch, can be caused by incorrect balancing
and/or alignment, or poorly maintained shock absorbers. In these cases the tyres are the messengers of the

problem, telling us what the cause may be and what needs to be rectified.

Faulty alignment, axle parallelism and balancing

Correct vehicle alignment, maintaining axle parallelism and wheel balancing (adjusting the wheel-tyre
assembly by means of counterweights to avoid imbalances) are essential to avoid irregular wear, vibrations
and even steering wheel trajectory problems (safety), apart from the risk of mechanical breakdowns.

According to First Stop, tyre distribution company, alignment should be

carried out when tyres are changed or rotated between axles, once a year or when between 15,000 and

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