A tire 1 in which shoulder land portions 7 are included in a tread portion 2. Provided in the shoulder land portions 7 are a plurality of first shoulder lateral grooves 10 that extend inward in the tire axial direction from tread edges Te and terminate within the shoulder land portions 7. The first shoulder lateral grooves 10 include first groove portions 11 that extend in the tire axial direction from the tread edges Te, second groove portions 12 that extend farther inward in the tire axial direction than the first groove portions 11 and moreover extend at different positions in the tire circumferential direction than the first groove portions 11, and third groove portions 13 connecting the first groove portions 11 and the second groove portions 12.

To improve uneven wear resistance performance while maintaining drainage performance. A tyre is provided with a plurality of inclined grooves in a tread portion. Each of the inclined grooves includes a first portion arranged on a crown region side, a second portion arranged on a shoulder region side, and a third portion connecting between the first portion and the second portion. In a ground contacting surface of the tread portion, the third portion has a groove width smaller than the first portion and the second portion. The third portion includes an outer portion arranged on the ground contacting surface side and an inner portion arranged radially inside the outer portion. The inner portion has a groove width larger than the outer portion.

A tire includes a first circumferential main groove 11 and a second circumferential main groove 12 in a tread surface 1. A resonator 21 is formed in an intermediate land portion 20 partitioned between the first circumferential main groove and the second circumferential main groove. The resonator has an auxiliary groove 211 whose both ends terminate within the intermediate land portion. The groove depths D1 of the first and second circumferential main grooves are 50% or less of the groove widths W2 of the first and second circumferential main grooves, respectively. The groove width W3 of the auxiliary groove of the resonator is 80% or less of the groove depth D1 of the first circumferential main groove.

A tire comprises a tread portion having a tread surface and buttress surfaces. The buttress surfaces have inclinations such that the tread edges shift axially outwards as the tread portion is worn off. The tread rubber includes a radially outermost first rubber layer and a radially inner second rubber layer. The loss tangent δ2 of the second rubber layer is larger than the loss tangent δ1 of the first rubber layer. One of or each of the buttress surfaces is provided with an outer lateral groove. The outer lateral groove is located axially outside the tread edge when the tire is new, and when the tread portion is worn off and the tread edge shifts axially outward, the outer lateral groove is at least partially located axially inward of the tread edge.

A tire includes a plurality of side blocks arrayed at a predetermined interval in a tire circumferential direction in a buttress portion. The side blocks include a short portion and a long portion arrayed in a Y shape and a slit that defines a connection portion of the short portion and the long portion and are disposed with a top portion of the Y shape facing toward an inner side in a tire radial direction. A radial height Hb of the side blocks is in the range 0.20≤Hb/SH≤0.50 with respect to a tire cross-sectional height SH.

A tire includes, in a tread portion, a pair of shoulder main grooves, a crown region between the shoulder main grooves, and shoulder regions disposed outside of the shoulder main grooves in a tire axial direction. Land ratios of the crown region and the shoulder regions are respectively 40%-60%. In the crown region, a plurality of middle blocks are arranged on both sides of a tire equator, and each middle block has a longitudinal shape in which a length in the tire circumferential direction is larger than a length in the tire axial direction.

A pneumatic vehicle Eire having a tread with at least one profile block row (2, 3) which is divided into a multiplicity of profile blocks (2a, 3a) by transverse channels (6, 7) having channel flanks (7a) which extend at an angle (α, β) of up to 50° with respect to the axial direction, wherein transverse channels (6, 7) are provided, in each of which there is formed a base elevation (8, 8.sup.I) which locally reduces the depth (t.sub.1) of the transverse channel (6, 7) and which connects successive profile blocks (2a, 3a) in circumferential direction to one another, wherein the base elevation (8, 8.sup.I) has at least two base elevation parts (8a, 8b, 8c) of different height (h.sub.max, a, h.sub.max, bc).

Centrally on each of the base elevation parts (8a, 8b, 8c), there is formed at least one groove (10, 11) which runs in the dire tion of extent of the transverse channel (6, 7) and which emerges from the base elevation part (8a, 8b, 8c) at least on one side.

Tyre (1) for heavy load vehicle wheels, having a tread band (8) comprising: —a plurality of circumferential grooves (3, 4, 5, 6); —a plurality of transverse grooves (15) extending between two axially consecutive circumferential grooves (3, 4, 5, 6), thus defining a plurality of blocks (21); —each block (21) comprising a radially outer top surface (7) and having a height (M) measured between said top surface and a bottom surface of a respective transverse groove (15); —said transverse grooves (15) comprising a first segment (16) having a width L1 and a second segment (17) having a width L2, where L2<L1; —said first segment (16) being at least partially delimited by walls of two circumferentially consecutive blocks (20, 21); —at least one filling element (18) contained within said first segment (16); —said at least one filling element (18) having a radially outer top surface (19), located radially inwardly relative to said top surface (7) of the block at a radial distance (D) between 5% and 50% of the height (M) of the blocks (21); —the plan surface area (A2) of said top surface (19) of said at least one filling element (18) being greater than 60% of the plan surface area (Ai) of said first segment (16); —said at least one filling element (18) being spaced apart from said walls (27, 28) along at least 70% of its perimeter (P).

The tire has, in a tread surface, at least one circumferential groove continuously extending in a tire circumferential direction, and a shoulder land portion partitioned with the circumferential groove and a tread ground contact edge, the shoulder land portion has a first width direction groove that extends in a tire width direction and via which the circumferential groove communicates with the tread ground contact edge, the first width direction groove has, in the first width direction groove, a second width direction groove that communicates with the first width direction groove, and respective groove widths of the circumferential groove, the first width direction groove and the second width direction groove satisfy a relational expression of “the groove width of the circumferential groove>the groove width of the first width direction groove>the groove width of the second width direction groove”.

A pneumatic tire includes lug grooves having alternating first and second groove portions. The first groove portion intersects an equator, extends in a width direction, and communicates with an adjacent second groove portion. The second groove portion inclines from the first groove portion at a smaller angle relative to a circumferential direction smaller than that of the first groove portion and extends to a tread edge on one side. The first groove portion is on a stepping side with respect to an end on the tread edge side. The second groove portions curve or bend and have an average angle in an inner region smaller than that of the second groove portions in an outer region. A maximum length in the width direction of center blocks defined by narrow grooves connecting adjacent second groove portions and the lug grooves is 25%-35% of a development width.