A tire 1 comprises a tread portion 2 provided with a plurality of blocks 5 arranged therein. The blocks 5 include at least one first block 20 comprising a first part 6 arranged on one side in a tire circumferential direction and a second part 7 arranged on the other side in the tire circumferential direction. The first part 6 extends in the tire circumferential direction with a substantially constant width (Wa) in a tire axial direction. The second part 7 has a width (Wb) in the tire axial direction larger than that of the first part 6 so that the second part 7 protrudes axially outwardly from the first part 6 so as to protrude more toward one side in the tire axial direction.

A tire includes a tread portion including a row of blocks arranged in a tire circumferential direction divided by lateral grooves. Each block includes a block tread surface, a first block sidewall surface located on a leading side in a rotation direction of the block, and a leading-side corner portion between the block tread surface and the first block sidewall surface. The leading-side corner portion includes a first portion and a second portion extending in a tire axial direction. The first portion is formed sharper than the second portion. In a plan view of each block, an angle θ1 of the first portion to the tire circumferential direction is larger than an angle θ2 of the second portion to the tire circumferential direction. Each lateral groove has a groove width (A) at the first portion that is larger than a groove width (B) at the second portion.

A tire includes a tread portion. The tread portion includes a pair of shoulder main grooves and a plurality of crown blocks. Each of the crown blocks includes a ground contacting surface, a chamfered portion arranged so as to surround the entire circumference of the ground contacting surface, and a main body portion arranged inside the chamfered portion in a tire radial direction. The main body portion is provided with at least one step-shaped portion that is bent stepwise in a transverse cross section orthogonal to the ground contacting surface.

A pneumatic tire includes an inclined groove disposed in a first land portion and/or a second land portion which includes at least two bent portions. A sipe is disposed in the first land portion and/or the second land portion so as to intersect the inclined groove at 90°±30°. The sipe includes at least one bent portion.

A tyre includes a tread portion including an outboard middle land portion disposed between an outboard tread edge and a tyre equator. The outboard middle land portion includes first and second longitudinal edges, outboard middle lateral grooves extending from the first longitudinal edge and having terminal ends within the outboard middle land portion, first outboard middle sipes extending from the respective terminal ends of the outboard middle lateral grooves to the second longitudinal edge, and second outboard middle sipes extending from the first longitudinal edge toward the second longitudinal edge beyond the terminal ends of the outboard middle lateral grooves and terminating within the outboard middle land portion. The outboard middle land portion is not provided with any lateral grooves that extend from the second longitudinal edge toward the first longitudinal edge to reach an axial center location of the outboard middle land portion.

A tire includes a circumferential narrow groove disposed in a tread portion center region and having a groove width of 0.5 mm or more and 3.0 mm or less, and a first land portion defined by the circumferential narrow groove and a second land portion located further on a tire equatorial plane side than the first land portion and adjacent to the first land portion. Additionally, the first and second land portions include chamfered portions, respectively in edge portions on the circumferential narrow groove side. Additionally, a circumferential length L33 of the chamfered portion of the second land portion has the relationship L33<L24 with respect to a circumferential length L24 of the chamfered portion of the first land portion.

A tire comprises a tread portion 2 comprising at least a first main groove 3 and a second main groove 4 extending continuously in a tire circumferential direction. The first main groove 3 comprises a first oblique portion 11 inclined with respect to the tire circumferential direction and a second oblique portion 12 connected with the first oblique portion and inclined in an opposite direction to the first oblique portion 11. The second main groove 4 comprises a third oblique portion 13 inclined in a same direction as the first oblique portion 11 with respect to the tire circumferential direction, a fourth oblique portion 14 inclined in an opposite direction to the third oblique portion 13, and a longitudinal groove portion 15 disposed between the third and fourth oblique portions 13 and 14 so that they are not directly connected and extending along the tire circumferential direction.

The tire includes a tread portion having circumferential grooves extending in a tire circumferential direction and land regions demarcated by the circumferential grooves. The circumferential grooves include a first circumferential groove and a second circumferential groove adjacent to the first circumferential groove and having a width larger than the first circumferential groove. The land regions include a first land region demarcated between the first circumferential groove and the second circumferential groove. The first land region has lateral grooves extending in a tire axial direction and lateral sipes extending in the tire axial direction and each having a width smaller than that of each of the lateral grooves. A total value of the widths of the lateral grooves and the lateral sipes connected to the second circumferential grooves is smaller than a total value of the widths of the lateral grooves and the lateral sipes connected to the first circumferential grooves.

A tire has three or more circumferential direction main grooves, a first land portion and a second land portion that are partitioned by the circumferential direction main grooves, first sipes that are provided in the first land portion, and that have a bend portion protruding in the tire circumferential direction, and whose two ends communicate respectively with the circumferential direction main grooves, second sipes that are provided in the second land portion on a virtual extension of the first sipes, and whose two ends communicate respectively with the circumferential direction main grooves, and first terminal grooves that are provided in the first land portion between first sipes, that are positioned on an outer side in a tire width direction of the first land portion and communicate with the circumferential direction main grooves, and that terminate at a position further to the outer side in the tire width direction than a position in the tire width direction of a distal end of the bend portion, wherein angle portions on an acute angle side relative to the tire circumferential direction of the first land portion facing the first sipes are chamfered.

In a pneumatic tire, a center land portion includes center lug grooves and center blocks. The center lug grooves penetrate the center land portion. The center blocks are defined by the center lug grooves. A middle land portion includes middle lug grooves, middle blocks, a notch portion, and a middle sipe. The middle lug grooves penetrate the middle land portion. The middle blocks are defined by the middle lug grooves. The notch portion is an edge portion on the center main groove side of each of the middle blocks and formed on an extension line of each of the center lug grooves. The middle sipe extends from the notch portion and opens to an edge portion on the shoulder main groove side of each of the middle blocks.