DSI and WSI indicators (Nokian Hakkapeliitta 8)

The numbers on the center surface of the tire indicate how much of the main groove depth remains on the tread. The snowflake symbol Winter Safety Indicator (WSI) remains visible to a groove depth of four millimetres. Once the snowflake has worn out, the driver should purchase new winter tires to ensure sufficient safety.

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This innovation is used in these products