Unvulcanized rubber mixture for treads of vehicle pneumatic tires

Vehicle pneumatic tires comprising a tire tread, wherein said tire tread is manufactured from a rubber mixture comprising a rubber component and a filler component, said rubber component comprising:

• about 20-100 parts by weight cis-1,4 polyisoprene;
• about 0-65 parts by weight polybutadiene with a cis content of greater than 90 mole %, and;
• about 0-65 parts by weight solution-polymerized styrene-butadiene copolymer;
• per 100 parts by weight of said rubber component, and a filler component comprising about 65-120 parts by weight silicic acid per 100 parts by weight of said rubber component.

A sulfur cross-linkable unvulcanized rubber mixture for the manufacture of treads, the rubber mixture comprising:

• a rubber component comprising 100 weight parts of total mass of rubber comprising:
• about 20-100 parts by weight cis-1,4 polyisoprene, and
• about 15-50 parts by weight of polybutadiene having a 1,4-cis content of greater than 90 mole %;
• and
• a filler component comprising, relative to the 100 parts by weight of total mass of rubber:
• about 65-120 parts by weight silicic acid.