| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic tire which is excellent in operational stability at high speed. SOLUTION: A tread part which comprises two layers of a cap rubber layer arranged at outside in the radial direction and a base rubber layer arranged inside in the radial direction or a tread part of one layer are included in a pneumatic tire. In this case, at least one rubber 2 of the cap rubber and the base rubber of the tread part of two layers in the tread part or rubber of the tread part of one layer comprises rubber composition containing 50 pts.wt. or more SBR into 100 pts.wt. of material rubber and 0.2-5.0 pts.wt. vulcanization accelerator shown formula (wherein R<1> and R<2> independently represent an alkyl group of carbon number 1 to 10 or an aryl group of carbon number 6 to 10. The alkyl group may be applicable to straight chain, branch chain or cyclic structure) to 100 pts.wt. material rubber. |
