A pneumatic tire comprises a sidewall portion provided in its radially outer region B with side protectors protruding axially outwardly from the outer surface Ba of the radially outer region B. The side protectors are arranged in the tire circumferential direction at intervals so that grooved portions are formed between the side protectors. The width W1 in the tire circumferential direction of the grooved portion is in a range of from 50% to 70% of the width W2 in the tire circumferential direction of the side protector when measured at the same radial position.

A vulcanizable rubber composition comprising (i) a rubber component including a polyisoprene elastomer, (ii) a sulfur-based curative, (iii) zinc oxide, and (iv) a eutectic composition.

A pneumatic tire includes a plurality of main grooves each extending in a tire circumferential direction, and a shoulder rib formed by a shoulder main groove included in the main grooves. The shoulder rib is formed in an outer part of the pneumatic tire in a tire width direction. The shoulder rib includes a closed slit that communicates with the shoulder main groove and ends in the shoulder rib. The shoulder main groove includes a protrusion that extends into the closed slit.

A pneumatic tire includes a pair of sidewall portions. At least one of the pair of sidewall portions is provided with circumferentially spaced protrusions protruding axially outwardly. Each of the protrusions includes a first end in a tire circumferential direction and a recess extending in the tire circumferential direction from the first end and having a terminal end terminating within the protrusion.

A tyre includes a tread portion provided with blocks each protruding toward a ground contact surface thereof from a tread bottom surface, and axially spaced side portions each extending from the tread portion to a respective bead portion. The blocks include shoulder blocks spaced. The shoulder blocks each include an overhanging portion located axially outside the corresponding side portion. The overhanging portion includes a pair of first walls extending in substantially parallel with a tyre meridian cross-section. The shoulder blocks have shoulder block lengths which are lengths in the tyre circumferential direction measured between the pair of first walls along the ground contact surface, wherein the shoulder block lengths are shorter than gap lengths which are lengths in the tyre circumferential direction measured on the tread bottom surface between adjacent shoulder blocks.

The pneumatic tire includes a carcass layer, a belt layer disposed on an outer side of the carcass layer in a radial direction, and a tread rubber disposed on an outer side of the belt layer in the radial direction. Additionally, the carcass layer has a cord angle of 80° or more and 100° or less. Additionally, the belt layer is formed by layering a first reinforcing belt, a second reinforcing belt that is narrower than the first reinforcing belt, and an auxiliary belt that is spaced apart from a tire equatorial plane and disposed between the carcass layer and the first reinforcing belt. Additionally, the first reinforcing belt and the second reinforcing belt have cord angles of 11° or more and 30° or less, and the auxiliary belt has a cord angle of 55° or more and 70° or less.

A pneumatic tire has a pair of sidewall portions. An outer surface in a tire axial direction of at least one of the sidewall portions includes a base surface, at least one first protruding portion protruding more outward in the tire axial direction than the base surface, and a recessed portion extending on the base surface around the first protruding portion such that the first protruding portion is spaced apart from the base surface. The first protruding portion includes a first surface having a first protruding amount with respect to the base surface, and a second surface having a second protruding amount different from the first protruding amount with respect to the base surface, and the first surface and the second surface are connected so as to form a step.

A tire including a plurality of block patterns, wherein the plurality of block patterns may repeat around a circumference of the tire. The tire may further include a three dimensional chambered groove in the plurality of block patterns. The tire may further include a plurality of independent pattern blocks.

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.

Provided is a tire comprising a tread formed of a rubber composition comprising a rubber component comprising 0 to 50% by mass of an isoprene-based rubber, wherein the tire satisfies the following conditions (1) to (6): (1) when a tan δ at 30° C. (tan δ.sub.30° C.) is A, A≥0.12, (2) when a ratio (EB.sub.80° C./EB.sub.23° C.) of an elongation at break at 80° C. (EB.sub.80° C.) to an elongation at break at 23° C. (EB.sub.23° C.) is B, 0.60≤B≤1.00, and (3) when an abrasion resistance index with a tire of Comparative example 1 being 100 as measured by a LAT tester is C, 110≤C≤140, (4) when a ratio (LAND.sub.Sh/LAND.sub.Cr) of a land ratio of the entire pair of shoulder parts (LAND.sub.Sh) to a land ratio of the crown part (LAND.sub.Cr) is D, 0.80≤D≤2.00, (5) when a maximum groove depth of the circumferential main groove is E (mm), 5≤E≤20, and

[00001]$\begin{array}{cc}25\le \left(B\times C/A\right)\times \left(D/E\right)\le 200.& \left(6\right)\end{array}$