Abstract: In a pneumatic tire including a tread portion, side wall portions, and bead portions, a plurality of drainage grooves formed from circumferential grooves or width direction grooves is provided in the tread portion. The drainage grooves partition land portions. A plurality of loop-shaped narrow grooves formed so that a pivot angle from a starting point to a terminating point is not less than 90° and less than 360° is concentrically disposed in the land portions. At least one end of the narrow grooves is open to a common drainage groove.

Abstract: A pneumatic tire including a tread portion, side wall portions, and bead portions, wherein the tread portion includes a plurality of circumferential grooves having a groove width of not less than 3.0 mm and which extend in a tire circumferential direction while meandering, and a plurality of lateral grooves having a groove width of not less than 3.0 mm and which communicate between a pair of circumferential grooves adjacent in a tire width direction. The circumferential grooves and the lateral grooves partition two rows of polygonal blocks formed by arranging a plurality of polygonal blocks, having a polygonal shape with not less than five corners, in a staggered manner along the tire circumferential direction. A polygonal rib extending in the tire circumferential direction is disposed between the two rows of polygonal blocks. The polygonal rib is adjacent to the two rows of polygonal blocks.

Abstract: An object of the present technology is to provide a pneumatic tire whereby both performance on ice and dry performance can be achieved. A plurality of blocks is provided in a tread portion, a sipe being provided in at least one of the blocks. The sipe is, as a whole, a primary waveform sipe having, in a tread road contact surface, at least one peak portion and one trough portion. The primary waveform sipe is also an aggregation of secondary waveform sipes having a shorter wavelength.

Abstract: A pneumatic tire with a side wall portion includes a decorative region including two or more decorative portions that are continuously disposed so as to be contiguous in a tire circumferential direction and the tire radial direction, the decorative portions including multiple convex ridges that are disposed on an outer surface so as to be adjacent in the tire circumferential direction. A ridge arrangement angle is the same in the same decorative portion, and a ridge arrangement angle of the contiguous decorative portion differs therefrom. A distance between a first imaginary boundary line joining end portions of the ridges of the decorative portion that are on a side adjacent to the contiguous decorative portion and a second imaginary boundary line joining end portions of the ridges of the contiguous decorative portion on a side adjacent to the first imaginary boundary line is less than 1 mm.