COMPLETE GUIDE TO IDENTIFY DAMAGE TO CAR AND MOTORCYCLE TYRES

This guide proposes the identification of the most common damages that can occur on tyres installed both on the car and on a motorcycle.

The 5 cases considered below are only examples as it would be impossible to represent all the combinations and causes of damage that occur on a tyre.

We remind you that the individual cases represented may not always be attributed to all Car tyres and to their use, for certain situations they may even be irrelevant. As modifying only one characteristic of a tyre, some damage can change accordingly.

The appearance of a tyre can vary according to the different conditions (in relation to the vehicle, the type of use, environmental conditions, the user, etc.

CASE 1 – HERNIA ON THE SIDE

Case 1

In this specific case we analyze the appearance of a hernia on the lateral side of the tyre, very often it is caused by an impact during the rolling against an external element, for example a hole with a sharp edge or the pavement, the cause is often due to a problem under inflation.

It is therefore a stapling between these possible obstacles and the circle.

The damage is visible mainly on the outside and is manifested by a swelling, internally the carcass is damaged and the consequence is the weakening of the same with immediate and subsequent air loss, determined by the extent of the damage.

We recommend that you contact an operator to have the tyre replaced as soon as possible for your own safety.

CASE 2 – WEAR OF BOTH SHOULDERS

Case 2

The accentuated wear on both sides of the tyre and the presence of dust and veins on it are a signal not to be underestimated, the possible causes are rolling with over-flexion of the sides (overload or under-inflation) or by a sporty driving.

In the most serious cases it is possible to notice traces of wear in the area of ​​contact with the rim of the rim.

This results in internal heating which produces a high risk of degradation of the tyre composition material, separation in the top area and the fastest wear with a possible increase in fuel consumption.

We recommend contacting an operator in the sector to restore the correct pressure values ​​and check the seal between the tyre and the rim. Consider that the permitted wear limits have not been reached and if necessary replace the tyre.

CASE 3 – WEAR ONLY ONE SHOULDER

Case 3

The accentuated wear on only one shoulder of the tyre, where there are no sharp edges could be caused by a problem of inclination on the axis concerned.

The wear on the inner shoulder occurs in case of negative inclination, the external wear in case of positive inclination. It could also occur as a result of sports driving. The same type of wear often occurs on the other tyre on the same axle.

This phenomenon causes, in addition to greater danger in driving, a greater consumption of petrol and an unexpected wear of the tyres.

We, therefore, advise you to check the tyre degradation status at an operator in the sector. If it is too worn out, it is better to replace it. If you notice the problem promptly and wear is slight, it will be sufficient to adjust the convergence and camber.

Case 4

The localized wear on the tread manifests itself on a well-defined area of ​​the tyre, the affected surface is denoted wrinkled and lacks part of the tread pattern, and often also occurs on the other tyre of the same axle.

The possible cause is often due to emergency braking without ABS, the tyre locks and rubs on the ground consuming the contact area.

If this occurs only on a tyre it could be due to the locking of a brake caliper.

We, therefore, recommend replacing the tyre or both to avoid vibrations and sealing problems.

CASE 5 – WEAR WITH LATERAL DEBUGS

Case 5

Wear with lateral smudging occurs with a growing degradation from one side of the tread to the other and from smudges on the longitudinal edges.

It is also recommended to check the symmetrical wear on the other tyre of the same axle.

The cause could be a problem of “parallelism” of the axis (convergence/divergence) on the axis concerned.

The main consequence is the rapid wear, therefore we advise you to contact your tyre specialist to adjust the geometry of the vehicle and if you have reached the wear limits, better proceed with the replacement.

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