Provided is a pneumatic motorcycle tire in which, without compromising the stability during running, other performances such as light-weight are improved. Provided is a pneumatic motorcycle tire which comprises a tread portion 1, and side wall portions 2 and bead portions 3 extending from both sides of the tread portion, and whose rotation direction when the tire is mounted on a vehicle is designated. A tire tread is provided with a bent main groove composed of: a first groove 11 extending toward the designated tire rotation direction inclined outside in the tread width direction in a contact region during straight running; a second groove 12 extending from the end portion of the first groove in the reverse rotation direction of the designated tire rotation direction toward the reverse rotation direction of the designated tire rotation direction inclined outside in the tire width direction; and a third groove 13 extending from the end portion of the second groove in the reverse rotation direction of the designated tire rotation direction toward the reverse rotation direction of the designated tire rotation direction inclined outside in the tire width direction, and the bent main groove is formed such that an inclination angle .sub.3 with respect to the tire circumferential direction of the third groove is larger than an inclination angle .sub.2 with respect to the tire circumferential direction of the second groove.

Provided is a tire including, in a tread surface, a plurality of land portions partitioned by a circumferential main groove extending continuously in a tire circumferential direction on at least one side in a tire width direction, and comprising, in an internal land portion located in a vehicle-installed inside half portion to a tire equator plane among the plurality of land portions, a resonator including an auxiliary groove that terminates in the internal land portion, and a branch groove that communicates between the auxiliary groove and the circumferential main groove, and a hidden groove having an opening width in the tread surface that is smaller than a groove width of a groove bottom is provided in at least a part of the auxiliary groove.

A tyre includes a tread portion being provided with two circumferential grooves extending in a tyre circumferential direction to form a crown land portion therebetween. The crown land portion is provided with two or more crown grooves extending inwardly of the crown land portion from the respective circumferential grooves. Each crown groove includes wide-width regions and narrow-width regions having a groove width smaller than that of the wide-width regions, and the wide-width regions and the narrow-width regions are alternated.

Provided is a tire including, in a tread surface, a plurality of land portions partitioned by a circumferential main groove extending continuously in a tire circumferential direction, on at least one side in a tire width direction, and comprising, in an internal land portion located in a vehicle-installed inside half portion to a tire equatorial plane among the plurality of land portions, an internal resonator including a first auxiliary groove that terminates in the internal land portion, and a first branch groove that communicates between the first auxiliary groove and the circumferential main groove, and in the first branch groove, a hidden groove having an opening width in the tread surface that is smaller than a groove width of a groove bottom is provided adjacent to the first auxiliary groove.

To improve uneven wear resistance performance while maintaining drainage performance. A tyre is provided with a plurality of inclined grooves in a tread portion. Each of the inclined grooves includes a first portion arranged on a crown region side, a second portion arranged on a shoulder region side, and a third portion connecting between the first portion and the second portion. In a ground contacting surface of the tread portion, the third portion has a groove width smaller than the first portion and the second portion. The third portion includes an outer portion arranged on the ground contacting surface side and an inner portion arranged radially inside the outer portion. The inner portion has a groove width larger than the outer portion.

To improve uneven wear resistance performance while maintaining drainage performance. A tyre is provided with a plurality of inclined grooves in a tread portion. Each of the inclined grooves extends from a crown region to a shoulder region. Each of the inclined grooves includes a first portion arranged on the crown region side, a second portion arranged on the shoulder region side, and a third portion connecting between the first portion and the second portion. The third portion has a groove width smaller than the first portion and the second portion. The first portion, the second portion, and the third portion are inclined to the same side with respect to the tyre circumferential direction.

A tire comprises a tread portion having an outboard tread edge To and an inboard tread edge Ti. The tread portion is provided with: an outboard shoulder main groove extending continuously in the tire circumferential direction; an outboard crown main groove extending continuously in the tire circumferential direction and disposed between the outboard shoulder main groove and a tire equator; and outboard lateral grooves extending from the outboard crown main groove to the outboard tread edge To. The groove width of each of the outboard lateral grooves is decreased toward the outboard crown main groove 4.

A pneumatic vehicle tire, in particular a commercial vehicle tire, having a tread with transverse grooves (3, 3), which are continuous over the tread width and which, at least in sections, are formed to the profile depth and are the main grooves of the tread.

Circumferential grooves (4) that run adjacent to one another in pairs and parallel to one another, at an angle () with respect to the circumferential direction of 10 to 30 and have a smaller depth than the profile depth divide the tread, with two sections (4a) in each case between three transverse grooves (3, 3) following one another in the circumferential direction, into profile blocks (1, 2), wherein pairs of circumferential grooves following one another in the circumferential direction are offset with respect to one another in the axial direction, such that the circumferential grooves (4) of the pairs of circumferential grooves begin and end at substantially the same axial positions, wherein each circumferential groove (4) reaches, with a section (4b) running beyond a transverse groove (3), into a middle profile block (2) present between the circumferential grooves (4), and wherein each circumferential groove (4) is formed shallower in at least one section (4a, 4b) than in its other sections or its other section.

Provided is a motorcycle tire that further improves wet grip performance during turning while ensuring rigidity during turning. Provided is a motorcycle tire in which: a tread portion is composed of a central rubber (11C) and a both-side rubber (11S) having a lower modulus than the central rubber (11C); the both-side rubber extends from the tire equator to from to of the half width of the peripheral length; on a tire grounding portion, a first groove, a second groove and a third groove are included; a first bent portion, a second bent portion and a third bent portion of the first groove, an inner side end in the width direction of the second groove, and an inner side end in the width direction and an outer side end in the width direction of the third groove are positioned at from to , from 1/16 to 3/16, from 3/16 to 5/16, from to , from 1/16 to 3/16, and from to , respectively, of the half width of the peripheral length from the tire equator; and angles formed by a first groove portion, a second groove portion, a third groove portion, a fourth groove portion, the second groove, a fifth groove portion, and a sixth groove portion with respect to the circumferential directions are from 35 to 45, from 55 to 65, from 20 to 30, from 55 to 65, from 55 to 65, from 55 to 65, and from 15 to 25, respectively.

A tire 1 comprises a tread portion 2 provided with an outer shoulder main groove 3 in a part closest to an outside tread edge (To) and an outer crown main groove 4 on a side of an inside tread edge (Ti) of the outer shoulder main groove 3 both extending continuously in the tire circumferential direction, and outer transverse grooves 9 connecting between the outside tread edge (To) and the outer crown main groove 4 so that an outer shoulder land region 7A is defined between the outside tread edge (To) and the outer shoulder main groove 3 and an outer middle land region 7B is defined between the outer shoulder main groove 3 and the outer crown main groove 4. A maximum axial width Ws of the outer shoulder land region 7A is larger than a maximum axial width Wm of the outer middle land region 7B.