This combination gives the tire Nokian Hakkapeliitta 7 excellent traction in harsh conditions, enhances wear resistance and grip on wet surfaces. A large number of silica in the mixture had a positive effect on reducing rolling resistance, therefore, reduced harmful emissions and fuel consumption. Adding to the mixture of rapeseed oil, in addition to their environmental properties, makes a solid rubber in the gap. Season of Giving may help you with your research. Connection of components was made possible after the introduction of composition of silane, it allowed to combine a large number of silica and natural rubber. A new component kriosilan – a great find for the industry, a step forward in the development of rubber compounds for winter tires.
Nokian Hakkapeliitta protector 7 has improved multi-layer structure. Base layer – a hard, it gives support and tread firmly establishes the spikes into the holes. On the new test results can be judged by this indicator – the bus exceeds the multiple winner of tests Nokian Hakkapeliitta 5. Grip on ice and winter properties of “Seven” is much improved, it is worth noting that wet grip and handling on dry road, too, was considerably improved. In the tread wear indicator Nokian Hakkapeliitta 7, as in all the tires Nokian Tyres, is a patented wear indicator (Driving Safety Indicator, DSI), located next to the indicator of winter wear in the form of flakes.
The numbers in the central part of the tread show residual depth of the main grooves in millimeters. The numbers are erased as the tire wears. For safe driving in winter the depth of the grooves must not be less than 4 mm. When there is no symbol snowflake tire should be replaced. In a bus with wear more than 4 mm, sharply reduced resistance characteristics slashpleninga and winter the tire that is unsafe when used by the winter. Nokian Hakkapeliitta 7 is available in 48 sizes from 13 to 20 inches. For the first time in the world will spike bus index H speed (210 km / h), designed specifically for Porsche.