Abstract: A tire comprises a tread portion having outboard and inboard tread edges and provided with three main grooves to axially divide the tread portion into four land regions including a widest outboard middle land region, wherein first inclined grooves (16) extend across the entire width of the outboard middle land region; second inclined grooves (17) extend from a crown main groove and are terminated within the outboard middle land region; fourth inclined grooves (19) are connected to the second inclined grooves (17) and to the first inclined grooves on an outboard shoulder main groove side; and an angle of the first inclined groove (16) and an angle of the second inclined groove (17) with respect to the tire circumferential direction are gradually increases from the crown main groove toward the outboard tread edge.

Abstract: A tire comprises a tread portion axially divided into four land regions. The tire has a mounting direction to a vehicle and the land regions 4 include a widest outboard middle land region. The outboard middle land region is provided with first, second and third inclined grooves. The first inclined groove extends from a crown main groove and terminates within the outboard middle land region. The second inclined groove has its both ends terminated within the outboard middle land region. The third inclined groove intersects the first and second inclined grooves.

Abstract: A tyre includes a tread portion provided with a circumferential groove and a lateral groove. The at least one lateral groove includes a connected portion connected to the circumferential groove. The circumferential groove includes a groove bottom provided with groove bottom protruding portions protruding outwardly in the tyre radial direction. Each groove bottom protruding portion includes a first surface portion extending in the tyre radial direction and facing a first circumferential direction, and a second surface portion arranged on a second circumferential direction opposite to the first circumferential direction and extending at a larger angle with respect to the tyre radial direction than that of the first surface portion. In a tread plan view, at least a part of the groove bottom protruding portions is located in a lateral-groove extended region in which the connected portion is extended into the circumferential groove along the tyre axial direction.

Abstract: In a tire having composite grooves provided on a shoulder land portion, dry performance and wet performance are improved. The tire includes a tread portion 2. The tread portion 2 includes a first shoulder land portion 13. The first shoulder land portion 13 has shoulder lateral grooves 15 and shoulder composite grooves 20. The shoulder lateral grooves 15 and the shoulder composite grooves 20 are each curved so as to be convex in a tire circumferential direction. Each shoulder composite groove 20 includes, in a cross section thereof, a sipe element 21 having a width not greater than 1.5 mm and extending from a tread surface of the first shoulder land portion 13 in a tire radial direction, and a groove element 22 connected to an inner side in the tire radial direction of the sipe element 21 and having a width greater than 1.5 mm.

Abstract: A tire includes a tread part having main grooves and lands demarcated by the main grooves. A crown land between a pair of crown main grooves includes first crown lug grooves extending from one crown groove to tire axial direction inner side and terminated within the crown land, second crown lug grooves extending from the other crown groove to the tire axial inner side and terminated within the crown land, and first crown sipes formed at tire circumferential direction positions and connecting the crown grooves, each first crown sipe includes a first side crown sipe piece extending from one crown groove to the tire axial inner side, a second side crown sipe piece not positioned on an extension line of the first side piece and extending from the other crown groove to the tire axial inner side, and a connecting crown sipe piece connecting the first and second sipe pieces.

Abstract: A tire comprises center blocks 4 comprising a first center lateral groove 5A and a second center closed sipe 6a opposed to each other in a tire axial direction, and a second center lateral groove 5B and a first center closed sipe 6b axially opposed to each other. Lengths thereof satisfy the followings: LA/LA0?½, LB/LB0?½, Lb/Lb0 in a range of from ? to ?, La/La0 in a range of from ? to ?, LA<La, (LA+La)<LA0, LB<Lb, and (LB+Lb)<LB0. The center blocks 4 comprise a high rigidity region extending continuously between penetrating sipes 3 and between a first imaginary line passing through terminating ends of the first center lateral groove and the first center closed sipe and a second imaginary line passing through terminating ends of the second center lateral groove and the second center closed sipe.

Abstract: A tyre includes a tread portion including a first land portion having a circumferentially extending first edge and a circumferentially extending second edge on its ground contacting surface. The first land portion is provided with first lateral grooves extending from the first edge and terminating within the first land portion, second lateral grooves extending from the second edge and terminating within the first land portion, and first sipes. Each first sipe extends from a first end thereof opened at the second edge toward the first edge, and turns in a direction within the first land portion to extend to a second end thereof opened at the second edge at a different location from the first end.

Abstract: A pneumatic tire includes a tread portion being provided with at least one circumferentially and continuously extending main groove and at least one land portion adjacent to the main groove. The land portion includes a corner portion formed between a ground contact surface and a sidewall of the land portion on the side of the main groove. The land portion is provided with a lug groove extending from the main groove and terminating within the land portion. The corner portion includes a chamfered portion and a non-chamfered portion. The chamfered portion includes a first end in communication with the lug groove.

Abstract: Performance on snowy roads is improved. Provided is a pneumatic tire, of which the mounting orientation on a vehicle is indicated. An outer middle land part is formed between a first major groove and a second major groove. The first major groove has first portions and second portions alternately formed in the tire circumferential direction, the second portions being wider than the first portions. The outer middle land part is provided with a plurality of middle inclined grooves not directly interconnected with either the first major groove or the second major groove, a plurality of outer middle lug grooves connecting the second portions of the first major groove and the middle inclined grooves, and inner middle lug grooves connecting the middle inclined grooves and the second major groove. The outer middle lug grooves are provided to different positions in the tire circumferential direction than the inner middle lug grooves.

Abstract: A pneumatic tire 1 has a tread portion 2 provided in a shoulder land region 5 with: axially inner shoulder sipes 8 each extending axially outwardly from a shoulder main groove 3 to its axially outer end 8e terminated within the shoulder land region 5; and axially outer shoulder sipes 9 each extending axially outwardly from its axially inner end 9i located axially outside the axially outer end 8e. The axially inner end 9i of each axially outer shoulder sipe 9 is positioned on an axially outward extension of one of the axially inner shoulder sipes 8.