Abstract: A pneumatic vehicle tire, in particular commercial vehicle tire, having a tread having in each case one shoulder-side profile rib (1) which is separated in each case from a central tread portion (3) by a wide circumferential groove (2) which is made to profile depth (T) and which runs around rectilinearly in the circumferential direction, wherein the circumferential groove (2) has a rounded groove base (8) and is delimited at the profile rib (1) by a rib flank (6).

Abstract: It is a tyre 1 provided in a tread portion 2 with blocks 3 having ground contacting surfaces (3a). At least one of the blocks 3 is provided with a chamfered portion 7 formed in such a manner that a corner portion (3k), where a vertical wall surface (3b), a lateral wall surface (3c), and the ground contacting surface (3a) intersect with each other, is cut out obliquely, and a chamfer edge 8 where the chamfered portion 7 and the ground contacting surface (3a) intersect. The chamfered portion 7 is provided with a plurality of first concave portions 9 extending inwardly in a tyre radial direction from the ground contacting surface (3a). The first concave portions 9 have wavy shapes having amplitudes in a longitudinal direction of the chamfer edge 8.

Abstract: Provided is pneumatic tire in which a land portion includes a width direction sipe extending in a tread width direction, the width direction sipe includes, in a cross section along a depth direction, a linear portion extending from an opening of the width direction sipe toward a bottom of the width direction sipe, and a bent portion connected to the linear portion, bending and extending from a connecting portion with the linear portion to the bottom of the width direction sipe, and the linear portion of the width direction sipe has a length in the depth direction increasing as the linear portion extends from a center portion of the width direction sipe in the tread width direction toward an end portion in the tread width direction.

Abstract: A protrusion portion (110) of a pneumatic tire is formed by a plurality of protrusion parts (111) extended along a tire circumferential direction. The protrusion parts (111) are arranged with predetermined gaps therebetween so as to form a circle along the tire circumferential direction. A length (S1) of the protrusion part (111) in the tire circumferential direction is larger than a maximum width (W1) of the protrusion part (111) in a tire radial direction. In a tire side view, a narrow groove (200) extended along the tire circumferential direction is formed on a surface (111s) of the protrusion part (111).

Abstract: A tyre has a tread portion having a tread ground contacting surface and a main groove having a bottom surface and two groove wall surfaces extending outwardly in a tyre radial direction from the bottom surface. In a lateral cross section perpendicular to a length direction, at least one groove wall surface has an inner groove wall portion connected with the bottom surface and a protruding portion connected with the inner groove wall portion and having a protruding end protruding inwardly in a groove width direction from a groove reference line obtained by extending the inner groove wall portion. The protruding portion has an inclined surface portion extends obliquely between the protruding end and the tread ground contacting surface. When the tread portion in a reference state is loaded with a tyre load of 1.20 times a standard tyre load, the whole inclined surface portion contacts a flat surface.

Abstract: A first land region is defined between a first main groove and a second main groove extending in a tyre circumferential direction. The first land region is provided with a first oblique groove and a second oblique groove. The first oblique groove extends obliquely with respect to a tyre axial direction from the first main groove to have an end portion terminating within the first land region. The second oblique groove extends obliquely with respect to the tyre axial direction from the second main groove to intersect with a middle groove portion of the first oblique groove and terminate there.

Abstract: In a pneumatic tire, one end of a first lug groove opens to an edge of an inner second land on the ground contact edge side, and at the other end terminates within the inner second land. One end of the second lug groove opens to the edge of the inner second land on a equatorial plane edge side, and the other end terminates within the inner second land. The first and second lug grooves are alternately arranged in the circumferential direction. In a region on the outer side in the width direction, a circumferential main groove on the equatorial plane side defining the outer second land has a bent shape with an amplitude in a lateral direction, and includes an acute angle bend bending at an edge on the equatorial plane side. The outside second land includes a lug groove opening to a position facing the bend.

Abstract: In a pneumatic tire 10 according to the present invention, as an average sipe interval hc defined by an average interval of sipes adjacent to each other in a tire circumferential direction in a center portion block, which is a block arranged at a position including a tire equatorial line, and an average sipe interval hs is defined in a shoulder portion block, which is a block located at an ground contact end in a tire width direction, a relation of 1.05?(hs/hc)?4.00 is fulfilled.

Abstract: A tire having a tread portion with: zigzag shoulder main grooves having a trapezoidal wave form comprising first and second circumferential segments and first and second oblique segments; and shoulder axial grooves extending from the shoulder main grooves beyond the tread edges. The shoulder axial grooves are respectively smoothly continued to the first oblique segments or the second oblique segments so as to form composite shoulder axial grooves whose groove widths are smoothly increased toward the axially outside of the tire.

Abstract: A tire includes having a tread portion that has three land portions defined by two crown main grooves that continuously extend in a tire circumferential direction and that are arranged across a tire equator. The three land portions include two shoulder land portions. At least one of the shoulder land portions includes a plurality of main inclined grooves that extend so as to be inclined. At least one of the main inclined grooves has an inner end and an outer end. The main inclined groove has a steeply-inclined portion that extends so as to be inclined from the inner end toward a tread end, and a gently-inclined portion that extends across the tread end from the outer end at an angle, relative to an tire axial direction, which is less than an angle of the steeply-inclined portion relative thereto. A length of the steeply-inclined portion is greater than a length of the gently-inclined portion.

Abstract: A tire includes a tread having main grooves linearly continuously extending in tire circumferential direction, and a first land portion formed between the main grooves. The first land portion has first transverse grooves such that each first transverse groove is extending inclined in first direction with respect to tire axial direction and completely across the first land portion, and first blocks formed between the first transverse grooves such that one or more first blocks have a first slot extending from first side surface of the first block on one side in the tire axial direction, a second slot extending from second side surface of the first block on the opposite side in the tire axial direction, a first sipe extending from the first slot and terminating within the first block, and a second sipe extending from the second slot and terminating within the first block without intersecting the first sipe.

Abstract: The present invention relates to a tire with main kerfs and sub-kerfs, and more particularly, to a tire with main kerfs and sub-kerfs, which maintains drainage performance and running and braking performance by additionally including an auxiliary groove and improves a flow of air and drainage performance by including an auxiliary flow tube.

Abstract: A plurality of main grooves extending from a tread center region including a tire equator to ground contact ends so as to be inclined with respect to a tire width direction are provided on a tread section at intervals in a tire circumferential direction. Sub-grooves extending in a direction crossing the tire width direction with a narrower groove width than the main grooves in the tread center region are provided. Tie bars connecting blocks separated by the sub-grooves are provided inside the sub-grooves.

Abstract: A pneumatic tire is provided in which each of sipes has a leading-side edge and a trailing-side edge. A chamfered portion that is shorter than a sipe length of the sipe is formed on each of the leading-side edge and the trailing-side edge. The sipe includes, at sections facing the chamfered portions, non-chamfered regions in which other chamfered portions are not present. Both end portions of the sipe are terminated inside a rib. A maximum depth x (mm) of the sipe 11 and a maximum depth y (mm) of the chamfered portion 12 satisfy a relationship x×0.1?y?x×0.3+1.0. A sipe width of the sipe is constant in a region between an end portion of the chamfered portion positioned on an inner side in the tire radial direction and a groove bottom of the sipe.

Abstract: A pneumatic tire, includes: an annular-shape tread portion; a sidewall portions; and bead portions. JIS hardness of tread rubber is within a range of 40 to 60 and snow traction index is 180 or higher. A rib positioned between circumferential grooves is demarcated in a center region of the tread portion. Closed grooves are formed in the rib. The closed grooves are inclined with regard to a tire axial direction such that a closed end faces a leading side. A groove wall of the closed groove on the leading side protrudes more outward in the tire axial direction than a groove wall on a trailing side. A difference between angles ?1 and ?2 of the groove walls on the leading and trailing sides of the closed grooves, respectively, with regard to the tire axial direction is within a range of 0°??1-?2?5°.

Abstract: A tire comprises a tread portion provided with two circumferential grooves disposed one each side of the tire equator and extending continuously in the tire circumferential direction, and a shoulder land region defined on the axially outside of each of the two circumferential grooves. The shoulder land region is provided with oblique grooves inclined with respect to the tire axial direction. The oblique grooves include first oblique grooves having axially inner ends, and second oblique grooves having axially inner ends positioned axially outside the axially inner ends of the first oblique grooves.

Abstract: A pneumatic tire includes at least four circumferential main grooves extending in a tire circumferential direction and at least five land portions defined by the at least four circumferential main grooves. A center land portion includes a plurality of center lug grooves extending through the center land portion in a tire lateral direction and disposed at predetermined intervals in the tire circumferential direction, and a plurality of center blocks that are defined by the plurality of center lug grooves. The center blocks each include a narrow shallow groove that extends through the center block in the tire lateral direction and that remains open when the tire comes into contact with the ground.

Abstract: A tire comprises a tread portion whose position when mounted on a vehicle is specified. The tread portion includes an inner crown land region defined between a crown main groove and an inner shoulder main groove. The inner crown land region includes crown lateral grooves, first inner crown sipes, second inner crown sipes each extending from the inner shoulder main groove toward the crown main groove and having an inner end terminating within the inner crown land region, and third inner crown sipes each extending from the crown main groove toward the inner shoulder main groove and having an outer end terminating within the inner crown land region. The crown lateral grooves each have a length in a tire axial direction larger than that of each of the second inner crown sipes.

Abstract: A tyre comprises a tread portion comprising a first tread edge and a second tread edge, and the tread portion is provided with a plurality of oblique grooves. The plurality of the oblique grooves includes a first oblique groove and a second oblique groove. Each of the first oblique grooves and the second oblique grooves has an open end and a terminating end, and a first steeply-inclined portion positioned on a side of the open end, a second steeply-inclined portion positioned on a side of the terminating end, and a mildly-inclined portion positioned between them. The second steeply-inclined portion includes a part in which an angle thereof with respect to a tyre circumferential direction is gradually decreased as it goes toward the terminating end.

Abstract: A tyre comprises a tread portion. The tread portion includes a shoulder main groove extending continuously in a zigzag manner in a tyre circumferential direction on a side of a tread edge, a plurality of middle lateral grooves each extending inwardly in a tyre axial direction from the shoulder main groove, and a plurality of middle blocks divided by the plurality of the middle lateral grooves. Each of the middle blocks has a ground contacting surface defined between a first edge and a second edge extending in the tyre circumferential direction. At least one of the middle blocks has a full sipe extending so as to connect between the first edge and the second edge and having at least one bent portion, and a semi-sipe extending linearly from the first edge or the second edge and terminating within the at least one of the middle blocks.

Abstract: A tire comprises a tread portion 2. The tread portion 2 has a repeated pattern portion 7 in which a plurality of minimum pattern constituent units 8 is arranged in a tire circumferential direction. Each of the minimum pattern constituent units 8 includes a center block 10, a plurality of surrounding blocks 11 surrounding the center block 10, and dividing grooves 15 each arranged between adjacent ones of the plurality of the surrounding blocks 11. The dividing grooves 15 include first dividing grooves 16 and second dividing grooves 17 inclined in opposite directions to each other.

Abstract: 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.

Abstract: 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.

Abstract: A tire includes a carcass ply, a tread disposed radially outward of a crown region of the carcass ply, and a belt structure having an overall axial width substantially equal to a tread width interposed between the tread and the crown region in circumferential surrounding relation to the carcass ply. The belt structure includes a first belt layer and a second belt layer radially adjacent the first belt layer. The first belt layer includes a first reinforced composite with first reinforcement cords embedded in a first rubber matrix. The first reinforcement cords have a construction of 1100/4 dtex with a twist between 150 TPM and 250 TPM and a dipping tension between 100 mN/tex and 200 mN/tex.

Abstract: A car tyre having a tread that extends in axial direction for a width the tread including a central portion arranged across an equatorial plane, and two lateral portions opposed with respect to the central portion. The central portion is separated from the lateral portions of the tread by two circumferential grooves. The circumferential grooves have a width greater than about 6 mm. The central portion extends in axial direction for a width less than 20% of the width of the tread and includes a plurality of first sipes. Each lateral portion has a width greater than 30% of the width of the tread, and each lateral portion includes, furthermore, a plurality of transversal grooves. The transversal grooves of a lateral portion include at least a first inclined length that extends from a zone proximal to the respective circumferential grooves, moving away from the equatorial plane. The first inclined length has an inclination ??60° with respect to equatorial plane. Each lateral portion includes a plurality of sipes.

Abstract: 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 portion, a second imaginary line VL2 passing through a bottom portion of a shoulder main groove and parallel to VL1, an intersection point between VL2 and a surface of a shoulder land portion 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 an intersection point P and CL, B as a groove depth of the shoulder main groove, and C as a distance in the lateral direction between T and CL, 0.80?(B+C)/A?1.15 is satisfied and, given E as a distance in the lateral direction between the bottom portion of the shoulder main groove and P, 2.0?E/B?5.0 is satisfied.

Abstract: A pneumatic tire comprises circumferential main grooves extending in the tire circumferential direction and land portions defined by the circumferential main grooves. The land portions are each provided with a plurality of groove units which are sets including a first groove, a second groove, and a third groove. The first groove, the second groove, the third groove are disposed without meeting one another, and radially extend at intervals from each other ranging from 90 degrees to 150 degrees. Additionally, the first groove is a lug groove with the groove width ranging from 1.5 mm to 4.0 mm and has a semi-closed structure, opening to the circumferential main groove or the tire ground contact edge at a first end portion and terminating within the land portion at a second end portion.

Abstract: A pneumatic tire comprises at least four main grooves extending in the tire circumferential direction on the tread surface, circumferential land portions and shoulder land portions partitioned and formed by these main grooves, and designation of a mounting direction with respect to a vehicle, wherein a plurality of lug grooves is formed at intervals in the tire circumferential direction in each of the plurality of circumferential land portions, extending in the tire width direction, communicating with the main groove on the vehicle inner side, not communicating with the main groove on the vehicle outer side, and terminating within the circumferential land portion.

Abstract: A groove of tire thread having a plurality of first and second portions, each delimited by facing walls spaced apart by a maximum width measured at the tread surface and approaching one another such that, at a depth between 20 and 80% of the total depth they are spaced apart by a width less than the maximum width or facing walls spaced apart by a minimum width measured at the tread and diverge from one another such that, at a depth between 20% and 80% of the total depth of the groove, they are spaced apart from one another by a width greater than the width. A plurality of first and second portions of groove so as to form a continuous passage between all the portions of groove in order to allow liquid to flow in the groove regardless of the level of wear.

Abstract: A pneumatic tire has an asymmetrical tread pattern and a designated vehicle mounting direction. A sipe includes a leading-side edge and a trailing-side edge, each provided with a chamfered portion shorter than a length of the sipe, and a non-chamfered region where other chamfered portions do not exist disposed in an area opposite the chamfered portion. The sipe has a maximum depth x (mm) and the chamfered portion has a maximum depth y (mm) that satisfy x×0.1?y?x×0.3+1.0. The sipe has a constant width in a range from an end portion of the chamfered portion positioned inward in a tire radial direction to a groove bottom of the sipe. A groove area of the chamfered portions and the sipes included within a ground contact region is greater on a vehicle mounting inner side than on a vehicle mounting outer side.

Abstract: A tread block arrangement suitable for a tire or for a tread band for a tire. The tread block arrangement comprises a tread block that limits a first primary sipe. The first primary sipe comprises at least a first deep part and a second deep part separated from the first deep part by a first shallow part. A depth of the first deep part is at least three times a depth of the first shallow part and a depth of the second deep part is at least three times the depth of the first shallow part. The first deep part is limited in a longitudinal direction of the first primary sipe by a primary first end wall and a secondary first end wall such that a first angle between the primary first end wall and the secondary first end wall is from 1 degree to 30 degrees.

Abstract: An outer shoulder land region includes first shoulder lateral grooves each extending axially inwardly from an outer tread ground contact edge to have a first inner end in the tyre axial direction within the outer shoulder land region, first outer shoulder lateral sipes each connecting between the first inner end and an outer shoulder main groove, and second outer shoulder lateral sipes each extending axially inwardly from the outer tread ground contact edge to have a second inner end positioned on an axially outer side of the first inner ends. An outer middle land region includes outer middle lateral sipes each smoothly connected with the respective first outer shoulder lateral sipe with the outer shoulder main groove therebetween. Each of the outer middle lateral sipes connects between the outer shoulder main groove and an outer crown main groove and has a third inner end within the outer middle land region.

Abstract: A set of moulding elements, designed to be inserted into a mould for moulding a tyre, comprises: at least one first moulding element (1) and one second moulding element, each moulding element extending in a main moulding-element direction (EM) between two ends (3) of the moulding element with one of the ends (3) of the first moulding element connecting to one of the ends (3) of the second moulding element along an axis (MA), which is substantially perpendicular to the main moulding-element axis (EM).

Abstract: A tire includes a tread portion including a main groove, a first block and a second block which are adjacent to one another in a tire axial direction through the main groove. The main groove includes first groove elements and second groove elements having groove widths smaller than that of the first groove elements. The first block includes a first ground contact surface, a first sidewall facing one of the second groove elements, a first corner portion between the first ground contact surface and the first sidewall, and a first recess being cut out the first corner portion locally. The second block includes a second ground contact surface, a second sidewall facing said one of the second groove elements, a second corner portion between the second ground contact surface and the second sidewall, and a second recess being cut out the second corner portion locally.

Abstract: A pneumatic tire is equipped with: a first circumferential groove and a second circumferential groove which are formed on a tread surface of a tread portion and extend along a tire circumferential direction while being arranged side by side in a tire width direction interposing an equatorial plane of the tire therebetween; a plurality of first auxiliary grooves which are arranged in the tire circumferential direction, disposed intersecting the tire circumferential direction, and communicate with the second circumferential groove by passing through the first circumferential groove, and a plurality of second auxiliary grooves which are arranged in the tire circumferential direction, disposed intersecting the tire circumferential direction so as to incline in the tire width direction, communicate with the second circumferential groove, and bend continuously with respect to the first auxiliary groove bounded at the second circumferential groove.

Abstract: A tire having includes a V-shaped kerf to increase the directionality of running of the tire and having a drainage section at the lower side of the kerf to enhance (e.g., improve) the water drainage performance. The tire having V-shaped kerfs includes a kerf formed on a block and allowing water introduced thereinto to be discharged to a groove, and a drainage section connected to the groove to discharge the water to the groove, the drainage section being a space defined in the longitudinal direction of the kerf.

Abstract: A pneumatic tire includes: a protrusion portion projecting outward in a tire lateral direction disposed in a buttress portion; and a linear portion with a linear shape when viewed in a tire meridian cross section, the linear portion constituting a surface of the protrusion portion at a position inward in a tire radial direction from a corner portion, the corner portion being an end portion of the protrusion portion outward in the tire lateral direction; the corner portion being located within a retreading development width position, which is a range in the tire radial direction in which a boundary for removing a tread when retreading is located; and the linear portion having an angle ranging from 45° to 90° with respect to a horizontal line parallel with a tire rotation axis at a position inward of the linear portion in the tire lateral direction.

Abstract: A tire comprises a tread portion 2. The tread portion 2 comprises a plurality of lateral grooves 8 extending in a tire axial direction and blocks 9 divided by the lateral grooves 8. At least one of the blocks 9 includes a first lateral block wall 16 positioned on a side of one of the lateral grooves 8 adjacent thereto and a sipe pair 22 consisting of a first lateral sipe 23 and a second lateral sipe 24 adjacent to each other in the tire axial direction with a gap 25 therebetween. The first lateral block wall 16 has, at a center portion thereof in the tire axial direction, a convex portion 20 partly protruding toward the one of the lateral grooves 8. The gap 25 is arranged in a convex portion projection area 26 obtained by extending the convex portion 20 along a tire circumferential direction.

Abstract: A tire for two-wheel vehicle includes a tread portion having a designated rotation direction and being provided with a plurality of blocks and grooves. The plurality of blocks includes at least one V-shaped block having an axial center portion located rearwardly in the rotation direction with respect to its axial both end portions and a first sidewall located rearwardly in the rotation direction. The grooves include a groove bottom surface connected to the first sidewall, wherein the groove bottom surface is provided with ribs extending in a tire circumferential direction.

Abstract: A tire comprises a tread portion 2. The tread portion 2 comprises a plurality of oblique grooves 10 extending obliquely from a first tread edge Te1 positioned on one side in a tire axial direction toward a tire equator C, and a plurality of oblique land regions 13 each defined between a pair of the oblique grooves 10 adjacent to each other in a tire circumferential direction. Each of the oblique land regions 13 is provided with a plurality of joint grooves 15 each connecting between the pair of the oblique grooves 10.

Abstract: A tire includes a tread and a narrow, wavy, circumferential groove disposed on the tread, which extend around the tread in a circumferential direction. The narrow, wavy, circumferential groove has a first axial position associated with a minimum axial displacement, a second axial position associated with a maximum axial displacement, and the narrow, wavy, circumferential groove follows a serpentine path between the first and second axial positions. The narrow, wavy, circumferential groove has a first depth and a second depth, the first depth being a minimum narrow, wavy, circumferential groove depth and the second depth being a maximum narrow, wavy, circumferential groove depth. The narrow, wavy, circumferential groove follows a serpentine path between the first and second depths. The first depth of the narrow, wavy, circumferential groove and the second depth of the narrow, wavy, circumferential groove is between 0.10 mm and full tread depth.

Abstract: A tire comprises a tread portion provided with two circumferential grooves disposed one each side of the tire equator and extending continuously in the tire circumferential direction, and a crown land region between the two circumferential grooves. The crown land region is provided with first crown sipes extending from one of the circumferential grooves and terminating within the crown land region, and second crown sipes extending from the other circumferential groove and terminating within the crown land region.

Abstract: A pneumatic tire includes a block (41) formed by being partitioned by a main groove (15) and lateral grooves (20 and 25), and a block traversing sipe (45) which is a sipe longitudinally traversing the block (41), in which the block traversing sipe (45) has a zigzag shape that is constituted by a plurality of longitudinal sipe portions (42) extending in a circumferential direction of the tire, and a lateral sipe portion (43) extending in a tire width direction and connecting end portions of two longitudinal sipe portions (42), and a longitudinal sipe portion (42) closer to a kick-out side of the block (41) has a narrower width.

Abstract: Provided is a tire in which a first land portion partitions a first main groove from a second main groove. A first lug groove and a first sipe are provided in the first land portion. One end of the first lug groove communicates with the first main groove. The first sipe includes one end communicating with the second main groove and another end communicating with another end of the first lug groove. The first sipe includes a steeply inclined portion extending from the another end of the first lug groove and having an angle with respect to a tire circumferential direction smaller than that of the first lug groove, and a gently inclined portion extending from the steeply inclined portion to the second main groove and having an angle with respect to the tire circumferential direction larger than that of the steeply inclined portion.

Abstract: A ratio between the total width (SW) and outer diameter (OD) of a pneumatic tire, which has an asymmetrical pattern formed by grooves formed on a tread part, satisfies SW/OD?0.3. Given a ground contact width (CW) in a ground contact region in the tread part, a groove area ratio (GR), and a groove area ratio (GRi) of a tire inner side region (Ai), which spans from a tire equator line (CL) to the vehicle side in the ground contact region, and a groove area ratio (GRo) of a tire outer side region (Ao), which spans from the tire equator line to the opposite side of the vehicle side in the ground contact region, the ground contact region is formed to satisfy 0.75?CW/SW?0.9, 10?GR?25%, and GRi<GRo.

Abstract: The pneumatic tire comprises a tread portion 2 provided with first sipes 25 and second sipes 26 and having a first tread half portion 21 and a second tread half portion 22. The first sipes 25 are smoothly continued from a crown land region 10 in the second tread half portion 22 to a shoulder land region 13 in the first tread half portion 21 through a crown main groove 3 and a shoulder main groove 5. The second sipes 26 extend from the crown land region 10 in the second tread half portion 22 toward a second tread edge Te2.

Abstract: A tire includes a tread portion including a first land portion defined between circumferentially extending first and second edges. The first land portion is provided with first and second lateral grooves respectively extending from the first and second edges and terminating within the first land portion and a circumferentially extending first longitudinal narrow groove in communication with the first and second lateral grooves. Each of the first and second lateral grooves includes a wide-width portion and a narrow-width portion. The wide-width portion of each of the first lateral grooves extends from the first edge and the wide-width portion of each of the second lateral grooves extends from the second edge. The first longitudinal narrow groove passes through the narrow-width portion of each of the first and second lateral grooves without passing through the wide-width portion of each of the first and second lateral grooves.

Abstract: A tire includes a tread portion being provided with a circumferentially extending main groove to define a first land portion between the main groove and a tread edge. The main groove includes a groove bottom, an outer groove wall extending radially outwardly and inclined toward the tread edge, and an inner groove wall extending radially outwardly and inclined toward the tire equator. The groove bottom extends in a zigzag manner in a tire circumferential direction in such a manner as to alternate between a first location where the groove bottom is located nearest to the tire equator and a second location where the groove bottom is located nearest to the tread edge. An angle ?2b of the outer groove wall in a groove cross-section at the second location is greater than an angle ?1a of the inner groove wall in a groove cross-section at the first location.

Abstract: Provided is a tire comprising a radial direction, an axial direction, a circumferential direction, and a tire lug. The tire lug may be bounded by a plurality of surfaces. The plurality of surfaces may comprise a top surface and a first side surface oriented at a first angle to the top surface. The top surface may extending in the axial direction and the circumferential direction. The first angle may be greater than 90 degrees. The first side surface may comprise a first cavity of the first side surface. The first side surface may have a height and a width.

Abstract: A pneumatic tire comprises a tread surface of a tread portion comprising land portions defined by three circumferential grooves extending in the tire circumferential direction and main lug grooves forming intra-land portions divided in the tire circumferential direction; the intra-land portions being divided by the laterally outer circumferential grooves, the main lug grooves, and circumferential narrow grooves to form long small land portions, which are long in the tire circumferential direction); and the intra-land portions being divided by the laterally central circumferential groove, the main lug grooves, subsidiary lug grooves, and the circumferential narrow grooves to form two short small land portions, which are short in the tire circumferential direction.