A tire tread includes a plurality of circumferential grooves, each of the plurality extending continuously in a tire circumferential direction. The plurality of circumferential grooves define a circumferentially extending shoulder rib. The shoulder rib has a plurality of shoulder elements. Each shoulder element is defined by two lateral shoulder grooves. Each shoulder element has an axially outer shoulder element and a corresponding axially adjacent and axially inner shoulder element separated by a circumferential groove. The axially outer shoulder elements each have a pair of angled outer lateral S-shaped blind grooves extending axially away from the inner shoulder elements.

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.

In a tire, first and second center land portions each include a circumferential narrow groove and first and second lateral grooves. The first and second lateral grooves of the first center land portion are disposed overlapped with each other in a tire circumferential direction. The first and second lateral grooves of the second center land portion are disposed overlapped with each other in the tire circumferential direction. The first and second lateral grooves of the first center land portion are disposed offset with respect to the first and second lateral grooves of the second center land portion in the tire circumferential direction.

In the pneumatic tire, the ratio TW/SW of the ground contact width TW of the tire and the maximum width SW of the tire is 0.75 to 0.95. The tire width direction outside end of the belt layer extends in the tire circumferential direction and is positioned outside in the tire width direction than the circumferential direction groove formed most outside in the tire width direction. A width direction sipe extending in the tire width direction and closest to the tire circumferential direction end portion of the block and a width direction sipe adjacent to the width direction sipe and extending in the tire width direction are formed in the block, and a distance from the tire circumferential direction end portion to the width direction sipe along the tire circumferential direction is longer than a distance from the width direction sipe to the width direction sipe along the tire circumferential direction.

Center land portions of a tire each include a circumferential narrow groove extending in a tire circumferential direction, and a first lateral groove opening to one edge portion of each of the center land portions at one end and connecting to the circumferential narrow groove at the other end, and a second lateral groove opening to the other edge portion of the center land portion at one end and connecting to the circumferential narrow groove at the other end. Further, the circumferential narrow groove has a zigzag shape formed by repeatedly connecting a first long portion, a first short portion, a second long portion, and a second short portion. Furthermore, the first lateral groove connects to the first long portion of the circumferential narrow groove having the zigzag shape, and the second lateral groove connects to the second long portion of the circumferential narrow groove having the zigzag shape.

Provided is a pneumatic tire including: a plurality of main grooves each having a zigzag shape and extending in a tire circumferential direction; and a land portion defined by the main grooves adjacent to each other and having a rib structure that is continuous with the tire circumferential direction. The land portion includes first and second lug grooves having a semi-closed structure. A maximum length L21 of the first lug groove in a tire width direction has the relationship 1.30≤L21/L22≤2.30 with respect to a maximum length L22 of the second lug groove.

Provided is a pneumatic tire including a plurality of main grooves extending in a tire circumferential direction and land portions defined by the main grooves adjacent to each other, respectively. The land portions are ribs that are continuous in the tire circumferential direction, and include lug grooves having a semi-closed structure, respectively. Of the main grooves defining the land portions, at least one of the main grooves has a zigzag shape formed by alternately connecting long portions and short portions. Further, a circumferential length Lg2 of the long portion has a relationship 0.70≤Lg2/λ2≤0.90 with respect to a wavelength λ2 of the zigzag shape.

A pneumatic tire includes a tread; sidewalls; and beads. The tread includes main grooves, including a center main groove extending in a tire circumferential direction and a pair of shoulder main grooves extending in the tire circumferential direction, and land portions defined between the main grooves. At least one of the land portions includes lug grooves extending from at least one of the main grooves defining the at least one of the land portions and terminating within the at least one of the land portions. At least one of the lug grooves includes a raised bottom portion that is shallower than a groove bottom at a portion on an opening end side and a communicating portion that extends in a longitudinal direction of the at least one of the lug grooves following the raised bottom portion and is deeper than the raised bottom portion.

In a pneumatic tire, a tread portion comprises longitudinal and/or lateral grooves; a groove area ratio of a vehicle inner side region of the tread portion ranges from 30% to 39%; a difference between the groove area ratio Sin and a groove area ratio Sout ranges from 6-14%; and the rubber composition comprises a diene rubber comprising from 10-30 parts by mass of natural rubber and from 70-90 parts by mass of a solution polymerized styrene-butadiene rubber and/or an emulsion polymerized styrene-butadiene rubber per 100 parts by mass of the diene rubber, from 80-150 parts by mass of silica per 100 parts by mass of the diene rubber, from 0.5-10 parts by mass of a cyclic polysulfide per 100 parts by mass of the diene rubber, and from 3-10 mass % of an alkyltriethoxysilane having an alkyl group having from 3-20 carbons relative to an amount of the silica.

A tire includes first through fourth chamfered portions where tire width direction dimensions change in a tire circumferential direction formed along respective vehicle mounting outer edges of first through fourth circumferential main grooves. A second inclined groove adjacent to a vehicle mounting outermost position of the second chamfered portion is formed. A third inclined groove adjacent to a vehicle mounting outermost position of the third chamfered portion is formed. At least one circumferential narrow groove extending in the tire circumferential direction is formed in at least one of a first land portion and a second land portion.