| Wear on the center portion of the tyre |
| This wear condition can be seen on the driving wheels of powerful
vehicles that ride long distances at high speeds. |
| At high speeds, and due to centrifugal force, the diameter
of wheels increases more at the centre portion of tyre's tread
than on the tyre's shoulders. Consequently the propulsion force
is transmitted up from the center area of tyre tread on the asphalt
surface. This is reflected on the wear condition. |
| These symptoms are noticeable especially on wide tyres. |
| The reduction of air pressure on the tyres does
not change this wear condition. |
WARNING | The reduction of tyre inflation pressure below the indicated
values is not allowed, for safety reason. |
|
| The wear condition due to abrasion remains even if the tyre
rotation is made from front axle to rear axle. |
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