The unrelenting grip of the Nokian Hakkapeliitta 5 comes from several technical innovations.
The bear claw boosts stud(*) operations. The front edge of the tread blocks features a sharp-edged claw-like projection circled by siping, which pre-tightens and supports the stud. The bear claw holds the stud in the ideal position during road contact and braking, as well as in lateral movement. The stud does not twist or give way and thus maximises grip. Especially the grip of the shoulder area, most critical to braking, has improved considerably.
The tread of the Nokian Hakkapeliitta 5, called quattrotread, features four different kinds of rubber compounds. Nokian Tires is the first tire manufacturer to use this kind of a structure for winter tires.
The use of four different compounds improves driving stability and stud operation. The new tread also dampens tire noise to a pleasant level.
(*) These tires are NOT pre-studded by manufacturer.