To provide a pneumatic tire in which the unvulcanization viscosity of a rubber composition is low, operability is high and rolling resistance using the rubber composition is low, and which has low fuel consumption properties and excellent wear resistance, and further has superior control stability on a dry road surface.
The pneumatic tire uses a rubber composition comprising, to 100 pts.mass of a rubber component (A) composed of at least one of natural rubber and synthetic diene rubber, an aromatic vinyl compound-diene compound copolymer (B) having the weight average molecular weight of 5,000 to 200,000 (expressed in terms of polystyrene by gel permeation chromatography); wherein the ratio of the aromatic vinyl compound is 0 to 80 mass%, and the ratio of a vinyl bond in the diene compound part is 0 to 80 mass%, an inorganic filler (C) and an organic silicon compound (D) having a cyclic structure containing nitrogen atoms and silicon atoms in the molecule and one or more sulfur atoms, and also having a part in which one or more groups having reduced steric hindrance are bonded to the silicon atoms.
Masayoshi Kanda
Akio Miyao
Nobuyuki Baba