Pneumatic tire with tread including gently slant grooves having two different inclination angles

摘要

In a pneumatic tire having excellent drainage property and performances on snow, a central main groove 2 and a side main groove 4 and first and second gently slant grooves 5, 6 are arranged in a tread portion 1, and the first and second gently slant grooves 5, 6 are terminated in a central land portion 9 between the central main groove 2 and the side main groove 4, and first and second fine grooves 7, 8 are further arranged so as to extend from terminal ends 11, 12 of the first and second gently slant grooves 5, 6 toward the central main groove 2 and open thereto, respectively.