Sharp edges and a differentiated design characterise these winter tyres. The two different tread designs – symmetric or asymmetric – take regional situations and driving conditions into account. The multi-split tyre structure, zigzag grooves and a maximal 3D tread blade density increase the edge effect and therefore the grip in snow. A spiral 3D intrablock structure enhances drainage and thus assures very good braking performance on icy and snowy roads.