Nankang has launched the all new Winter Activa SV-4, which is exclusively developed for European cold season.
The new tyre will debut later this year and will initially be available in 20 sizes from 13 to 21 inches. A second phase with additional sizes will follow during 2022.
Compared to the predecessor, Nankang claims the SV-4 offers the more rounded performance in every category of features to deal with the current European winter weathers.
A spokesperson for the tyre maker says: “By working with the professional European proving grounds, the Nankang engineers have elevated grip, acceleration and handling in wet-road conditions, to achieve B in EU label grades.”
When it comes to the snowy road, it outperforms the predecessor with a good improvement scale in braking, acceleration and objective handling, according to the test report.
“The finer pitches and sipes of the new pattern represent the intention of building SV-4 as an all-around winter tyre,” the spokesperson adds.
“Proving the Winter Activa SV-4 is corresponding better to European winter conditions in particular, Nankang is confident that the new pattern SV-4 will meet our customers’ high expectations.”
Nankang states that the main aim of the SV-4 is to have the elevated grip on wet and snow, while also having the improved wearing durability and fuel efficiency.
The SV-4 benefits from a new structure and new materials, exclusively developed by the Nankang new product simulation system. The profile design of the optimised tyre’s footprint (tread contact width) can improve rolling resistance and even wearing durability, according to Nankang.
The spokesperson says: “The directional v-shape tread pattern design, with main lateral grooves stretching curvedly from centre to shoulder, enhances lateral drainage and snow grip.
“The broad sipes on the centre rib provides the powerful biting edges, becoming snow rake to expel ice and snow. The recessive design on circumferential groove wall enhances the water-film breaking ability to reduce aquaplaning, and snow expelling efficiency.”
On tread shoulder, lateral grooves blocks increase snow biting edges to maximise wet and snow performance. The varied shape blocks and ladder-shape pattern areas broaden the contact area with ice/snow to strengthen snow-shoveling capability and reinforce snow traction.
To maximise snow grip, the tyre maker says a 3D-sipe design is adopted with different depth depending on different block location. In total, the SV-4 delivers better wet braking performance than the SV-3, and almost 10 per cent better than the SV-3 in snow braking performance, according to the benchmark report done in Europe.