1 Scope
This International Standard specifies test methods for verifying the capabilities
of tyres for motorcycles. Of the test methods presented, only some may be required
depending on the type of tyre to be tested.
The tests are carried out in the laboratory under controlled conditions.
It includes a strength test for assessing the capability of the tyre structure, with
respect to breaking energy, in the tread area.
A second test, the endurance test, assesses the resistance of the tyre with respect
to service at full load and moderate speed over long distances.
The third test, the high-speed test, assesses the capability of the tyre as related
to service at the maximum speed capability of the tyre. It is not applicable to tyres
with a speed capability below 130 km/h.
The centrifugal growth test assesses the maximum growth of the tyre under the influence
of centrifugal forces at the maximum speed capability of the tyre. This is applicable
only to road tyres with speed symbols P and above.
The test methods presented in this International Standard are not intended for gradation
of tyre performance or quality levels.
This International Standard is applicable to all motorcycle tyres.