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Braking on ice method for class C1 tyres The ice performance is determined by a testing method in which the mean fully developed deceleration of a candidate tyre in an ABS braking test on a flat surface made of ice is compared with that of a reference tyre. For determination of the ice performance, braking tests of a candidate tyre shall be performed in three (3) non-consecutive braking test cycles. The relative performance shall be indicated by an ice grip index (GI). |
a6c0 |