A tyre includes a tread portion including a shoulder land portion which has a tread edge and an axial outer surface extending radially inwardly from the tread edge. The shoulder land portion is provided with shoulder lateral grooves extending inwardly in the tyre axial direction from the tread edge to define shoulder blocks therebetween, and protrusions protruding outwardly in the tyre axial direction from the outer surface. The protrusion includes first protrusions each provided on the respective shoulder blocks and extending in the tyre radial direction, and second protrusions connecting radially inner ends of adjacent two first protrusions such that first bent portions are formed between the second protrusions and the first protrusions. The first protrusions have widths smaller than maximum length in the tyre circumferential direction of the respective shoulder blocks, and the second protrusions have widths smaller than the width of the first protrusions.

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 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.

Present invention provides a tread for a tire being provided with a plurality of grooves extending in an orientation having a non-zero angle A with circumferential orientation, at least two circumferentially adjacent grooves delimiting a contact element, the contact element having at least one incision extending in an orientation substantially parallel to the grooves, the contact element being delimited into sub-contact elements, on a plane perpendicular to the orientation in which the plurality of grooves being extending and to the contact face, each sub-contact elements having a length Ls between the plurality of grooves and the at least one incision or between two incisions, an outermost portion of each the sub-contact element having a radius Rs smaller than a radius Rt of an outline OL of the tread at an intersection between the outline OL and the outermost portion, the radius Rs of the outermost portion of the sub-contact elements is smaller than or equal to 16.0 mm and greater than or equal to 5.0 mm.

A tire comprises a tread provided with two edges (25A, 25B) and with a center (C) dividing it into two parts of equal width with sets of blocks (21A, 21B). Each set of blocks (21A, 21B) comprises three zones: at the edge (211), at the center (213) and intermediate (212). Each set of blocks (21A, 21B) comprises a set of chamfers (26A, 26B, 26C) which extends over at least the edge zone (211) and the central zone (213) of the set of blocks (21A, 21B). The width LC1 of the set of chamfers (26A, 26B, 26C) over the edge zone (211) is different from the width LC2 of the set of chamfers (26A, 26B, 26C) over the intermediate zone (212), the widths LC1 and LC2 being comprised between 0.5 mm and 2.5 mm.

A tire comprises a directional tread provided with two edges (25A, 25B) and with a center (C) dividing it into two parts of substantially equal width. The tread comprises, on one of these two parts, blocks (21A, 21B) succeeding one another in a circumferential direction. Each block (21A, 21B) has a leading-edge face (26) and a trailing-edge face (27). The tire comprises, for at least one set of blocks (21A, 21B), at least one set of cavities (29) extending over the trailing-edge face (27) of the set of blocks (21A, 21B). The tread has a bottom surface (24) radially on the inside of the tread, the set of blocks (21A) having a height H, wherein the set of cavities (29) is between the bottom surface (24) of the tread and half of the height H.

A pneumatic tire can suppress uneven wear of the tire and can improve traction performance on snow. Land portions (12A, 12B, 12C), between a pair of outermost side circumferential grooves (11d, 11d) on the outermost sides in the tire widthwise direction among a plurality of circumferential grooves (11a, 11b, 11c, 11d) extending in the tire circumferential direction, are divided into a plurality of blocks (14A, 14B, 14C) by widthwise grooves (13a, 13b, 13c). A pair of groove side faces (13ap, 13aq; 13bp, 13bq; 13cp, 13cq) opposed to each other in the widthwise grooves (13a, 13b, 13c) are bent at bent portions (Kp, Kq) thereof.

The tire includes a tread section (10) including a pair of circumferential main grooves (20), and the tread section (10) includes a center land region (CR) partitioned by the pair of circumferential main grooves (20) and a shoulder land region (SR) partitioned by one circumferential main groove (20) and a tread end (TE). The center land region (CR) forms a dense structure, in which no main groove extending along the tire circumferential direction (TC) is formed. The shoulder land region (SR) includes a block (40) partitioned by a plurality of shoulder lateral grooves (30) crossing in the tire width direction (TW). A sipe (50) extending in the tire width direction (TW) and having one end communicating with the one circumferential main groove (20) is formed in the block (40). A projection (43) projecting inward in the tire width direction is formed on a first groove wall (21) of the circumferential main groove (20) in a corner part (41) of the block (40) formed by intersection of the one circumferential main groove (20) and the shoulder lateral groove (30).

A pneumatic tire includes circumferential main grooves extending in the tire circumferential direction on the tread surface, and in widthwise outermost land portions, widthwise grooves extending from the tread edges inward in the tire width direction and widthwise sipes extending from the tire widthwise inner edge of the widthwise grooves inward in the tire width direction and connecting to the circumferential main groove. Each widthwise sipe includes a widened portion, by the sipe bottom, with a larger sipe width than at the tread surface. A rectangle ratio is 0.8 or more. Each widthwise sipe extends at a first angle relative to the tire width direction in plan view of the tread surface. In a tire radial region containing the widened portion, the widened portion extends at a second angle smaller than the first angle relative to the tire width direction, or partially extends along the tire width direction.

A pneumatic tire of the present disclosure includes two or more circumferential main grooves extending in a tire circumferential direction on a tread surface, and in a land portion defined by the two circumferential main grooves, a widthwise sipe extending in a tire width direction from each of the two circumferential main grooves, a circumferential sipe extending in the tire circumferential direction, and a hole connected to the circumferential sipe. The widthwise sipe is connected to the circumferential sipe or the hole, the widthwise sipe includes a first widened portion, on a sipe bottom side, at which a sipe width is larger than on the tread surface side, the circumferential sipe includes a second widened portion, on a sipe bottom side, at which a sipe width is larger than on the tread surface side, and the hole, the first widened portion, and the second widened portion are connected.