A pneumatic tire includes shoulder lands and a center land, defined by main grooves on both sides of an equator in a zigzag pattern along a circumferential direction, are defined in a tread. Shoulder lug grooves extending in a width direction are formed in each of the shoulder lands. First and second center lug grooves, which extend from the shoulder lug grooves across each of the main grooves and are inclined at an angle of 45°-70° with respect to the width direction, are disposed in the center land. The first center lug groove terminates at the equator, and the second center lug groove terminates without reaching the equator. The first and second center lug grooves are alternately disposed in the circumferential direction. Connecting grooves inclined in an opposite direction to an inclination direction of the center lug grooves to connect the center lug grooves are formed in the center land.

A pneumatic tire includes a plurality of circumferential main grooves, a plurality of lug grooves, and a plurality of blocks. Raised bottom portions are formed on groove bottoms of shoulder circumferential main grooves that are the circumferential main grooves, among the plurality of circumferential main grooves, positioned most outward in a tire lateral direction, and shoulder lug grooves that are the lug grooves, among the plurality of lug grooves, positioned outward from the shoulder circumferential main grooves in the tire lateral direction and connected to the shoulder circumferential main grooves from outer sides in the tire lateral direction. The raised bottom portions are formed so as to exclude at least intersection portions where the shoulder circumferential main grooves and the shoulder lug grooves intersect.

A tire including a land part partitioned between two main grooves extending in the tire circumferential direction S of the tire and resonators formed in the land part. A resonator has a cavity part separated from the two main grooves and is opened at the surface of the land part, a 1st sipe that is opened at one main groove and the cavity part, and a 2nd sipe that is opened at the other main groove and the cavity part. Depths of the main grooves are 3 mm or more and 6.5 mm or less. A volume value of the cavity part is more than 3 times or more and 5 times or less a sum of the cross-sectional areas of the two main grooves with the land part in between, and lengths of the 1st sipe and the 2nd sipe are 10 mm or more and 25 mm or less.

In a pneumatic tire are defined: a first imaginary line VL1 passing through a ground contact surface in a meridian cross section of a tread, a second imaginary line VL2 passing through a bottom of a shoulder groove and parallel to VL1, an intersection point P between VL2 and a surface of a shoulder land outward of a ground contact edge T in a lateral direction, and an equatorial plane CL. Given A as a distance in the lateral direction between P and CL, B as a groove depth of the shoulder groove, and C as a distance in the lateral direction between T and CL, 0.80≤(B+C)/A≤1.15 is satisfied. Given Q as a distance in the lateral direction between CL and an end of a belt ply that has a shorter dimension in the lateral direction, 0.75≤Q/C≤0.95 is satisfied.

A pneumatic tire includes a first main groove on the outer side in the vehicle width direction of the equatorial plane, a second main groove closer to the equatorial plane than the first main groove, a third main groove on the inner side in the vehicle width direction of the equatorial plane, a fourth main groove farther from the equatorial plane than the third main groove, a first narrow groove between the third and fourth main grooves, and a first groove portion extending in the width direction between the first narrow groove and the fourth main groove and opening at one end to the fourth main groove. A relationship between the first main groove width G1, the third main groove width G3, and the fourth main groove width G4 satisfies 1.05≤G1/G3≤1.25, 1.10≤G4/G3≤1.30, and G3<G1<G4.

A tyre has a tread portion. The tread portion includes a land region defined between a first edge extending in a tyre circumferential direction and a second edge extending in the tyre circumferential direction. The land region is provided with a first lateral groove extending from the first edge toward the second edge and terminating within the land region, a vertical groove connected with the first lateral groove, extending in the tyre circumferential direction, and having both end portions terminating within the land region, and a sipe connected with the vertical groove and extending therefrom toward the second edge.

A pneumatic tire includes shoulder lug grooves and narrow grooves. The shoulder lug grooves are positioned outward in a width direction with respect outermost main grooves. The narrow grooves are positioned outward in the width direction with respect to the outermost main grooves, are formed in spaces between the shoulder lug grooves that are adjacent to each other in the tire circumferential direction, and have both ends connected to the shoulder lug grooves. The narrow grooves are formed across the ground contact edges. A relationship W≥(D1×0.8) is satisfied, where W indicates a distance between the ground contact surface inner end portions and the outermost main grooves in the tire width direction and D1 indicates a groove depth of the outermost main grooves.

A tire tread (1) having a tread pattern depth Hm, with at least two longitudinally oriented grooves (31, 41, 42), at least one of them being a complex groove (31), that in the new state, is alternately external cavities (311) that open onto the tread surface and internal cavities (312) that are hidden within the thickness of the tread. The external cavities (311) have a mean longitudinal length Lm, a depth at least equal to 0.9 Hm, and are separated by internal cavities having a mean longitudinal length Li, Li being at least equal to 0.5*Lm and at most equal to 2*Lm. At least one rib (21) in the longitudinal direction and delimited by a complex groove with transverse sipes (5) made at a mean spacing Pm. The spacing Pm of the transverse sipes is at most equal to the mean longitudinal length Lm of the external cavities (311).

A heavy duty pneumatic tire includes a tread pattern that includes circumferential main grooves, a center wide groove extending in a center region between the circumferential main grooves, and center lug grooves disposed in a first center region and a second center region on either side of the center wide groove in the tire lateral direction, the center lug grooves having a linear shape and opening to the center wide groove. The center lug grooves and the circumferential main grooves have a narrower groove width than shoulder lug grooves disposed in a shoulder region. The center lug grooves of the first center region and the center lug grooves of the second center region extend parallel with one another. The center wide groove has a constant groove depth that is shallower than the maximum groove depth of the circumferential main grooves and the center lug grooves.

The tire comprises a tread portion whose position when mounted on a vehicle is specified and having an asymmetric pattern with respect to a tire equator. The tread portion includes an outer shoulder main groove, an outer crown main groove, an inner crown main groove, an outer crown land region, and a center crown land region. The outer crown land region is provided with first outer crown sipes and second outer crown sipes. The center crown land region is provided with first center crown sipes and second center crown sipes. Each of the second outer crown sipes is arranged so as to be smoothly continuous with a respective one of the first center crown sipes with the outer crown main groove therebetween.