The tire is provided which has secured a traction performance in the side surface of the tire while showing a cut resistance property on the side surface of the tire. The tire includes a side block arranged on a side surface of the tire. The side block includes: a first block 11 formed on the side surface, the first block protruded from a tire surface 5 at a first height; a second block 12 formed on the side surface, the second block protruded from the tire surface at a second height different from the first height; a third block 13 formed on the side surface, the third block protruded from the tire surface at a third height different from the second height; and a fourth block 14 formed on the side surface, the fourth block protruded from the tire surface at a fourth height different from the third height.

The tire is provided which has secured a traction performance in the side surface of the tire while showing a cut resistance property on the side surface of the tire. The tire includes a side block arranged on a side surface of the tire. The side block includes: a first block 11 formed on the side surface, the first block protruded from a tire surface 5 at a first height; a second block 12 formed on the side surface, the second block protruded from the tire surface at a second height different from the first height; a third block 13 formed on the side surface, the third block protruded from the tire surface at a third height different from the second height; and a fourth block 14 formed on the side surface, the fourth block protruded from the tire surface at a fourth height different from the third height.

A pneumatic tire includes a tread portion having a first tread edge, and a first buttress portion extending inwardly in a tire radial direction from the first tread edge. The first buttress portion is provided with a plurality of protectors protruding outwardly in a tire axial direction. The plurality of protectors includes a set of protectors including a first protector and a second protector arranged adjacent to the first protector via a groove extending in the tire radial direction. The groove is provided with a tie-bar connecting the first protector and the second protector. The tie-bar is partially formed in a tire radial region of the groove, and the tie-bar has a protruding height that is smaller than a protruding height of the first protector and a protruding height of the second protector.

A pneumatic tire includes a tread portion having a first tread edge, and a first buttress portion extending inwardly in a tire radial direction from the first tread edge. The first buttress portion is provided with a plurality of protectors protruding outwardly in a tire axial direction. The plurality of protectors includes a set of protectors including a first protector and a second protector arranged adjacent to the first protector via a groove extending in the tire radial direction. The groove is provided with a tie-bar connecting the first protector and the second protector. The tie-bar is partially formed in a tire radial region of the groove, and the tie-bar has a protruding height that is smaller than a protruding height of the first protector and a protruding height of the second protector.

In a tire, a first side block comprises a first recess which opens so as to be directed toward a first circumferential direction, and a second recess which opens so as to be directed toward a second circumferential direction which is opposite the first circumferential direction in a tire circumferential direction. The first side block comprises a first region, a second region, and a first step which is between the first region and the second region and which is formed by a difference in heights by which the first region and the second region protrude.

A pneumatic tire includes a serration region provided in a predetermined region of a sidewall portion, the serration region being formed by arranging a plurality of ridges, the plurality of ridges protruding from a base surface in parallel to each other and periodically, when a length along a contour of the ridge per cycle in a cross-sectional view along a direction orthogonal to an extension direction of the plurality of ridges is defined as a length Lr and a length of one cycle of the plurality of ridges along the base surface is defined as a length Lb, a ratio (Lr/Lb) of the length Lr to the length being 1.2 or more and 2.0 or less, and the length Lb being 0.5 mm or more and 0.7 mm or less.

A pneumatic tire includes a serration region provided in a predetermined region of a sidewall portion, the serration region being formed by arranging a plurality of ridges, the plurality of ridges protruding from a base surface in parallel to each other and periodically, when a length along a contour of the ridge per cycle in a cross-sectional view along a direction orthogonal to an extension direction of the plurality of ridges is defined as a length Lr and a length of one cycle of the plurality of ridges along the base surface is defined as a length Lb, a ratio (Lr/Lb) of the length Lr to the length being 1.2 or more and 2.0 or less, and the length Lb being 0.5 mm or more and 0.7 mm or less.

A pneumatic tire has paired bead portions, paired sidewall portions, a tread portion, a plurality of lug grooves extending from a shoulder area of the tread portion to reach a buttress area of the sidewall portion, and a block defined by the plurality of lug grooves. The block includes a shoulder block provided in the shoulder area, and a buttress block provided in the buttress area. The buttress area is provided with an annular rib annularly extending along a tire circumferential direction. The lug grooves are comparted into an outside lug groove positioned in an outer side of the annular rib, and an inside lug groove positioned in an inner side of the annular rib. A widened portion is provided in at least part of the plurality of lug grooves so as to enlarge a width of the annular rib.

A pneumatic tire has paired bead portions, paired sidewall portions, a tread portion, a plurality of lug grooves extending from a shoulder area of the tread portion to reach a buttress area of the sidewall portion, and a block defined by the plurality of lug grooves. The block includes a shoulder block provided in the shoulder area, and a buttress block provided in the buttress area. The buttress area is provided with an annular rib annularly extending along a tire circumferential direction. The lug grooves are comparted into an outside lug groove positioned in an outer side of the annular rib, and an inside lug groove positioned in an inner side of the annular rib. A widened portion is provided in at least part of the plurality of lug grooves so as to enlarge a width of the annular rib.

In a pneumatic tire, a plurality of side blocks include a first side block which is contiguous with the exterior in a tire axial direction of a first tread block, and a second side block which is contiguous with the exterior in the tire axial direction of a second tread block; the first side block comprises a first apical surface which is arranged at an outer end of the first side block in the tire axial direction; the second side block comprises a second apical surface which is arranged at an outer end of the second side block in the tire axial direction, and area of the second apical surface is greater than area of the first apical surface.