A tyre for winter comprises a tread portion 2 having a first tread edge (Te1) and a second tread edge (Te2) and sipes 40 provided in at least a part of the tread portion 2. The tread portion 2 is provided with a plurality of first oblique grooves (10A) each extending obliquely from the first tread edge (Te1) toward the second tread edge (Te2). Each of the first oblique grooves (10A) has an inner end (10a) terminating between a tyre equator (C) and the second tread edge (Te2). The inner end (10a) is not connected with other grooves.

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.

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.

A tire includes an outboard tread edge and an inboard tread edge to be located on an outboard side and an inboard side of a vehicle, respectively, circumferentially and continuously extending main grooves, and land portions divided by the main grooves. The land portions include an outboard shoulder land portion, an outboard middle land portion, an inboard shoulder land portion, and an inboard middle land portion. Each of the outboard shoulder land portion, the inboard shoulder land portion, and the inboard middle land portion is provided with axially extending lateral grooves. The outboard middle land portion is provided with outboard middle lateral grooves extending from an edge of the outboard middle land portion on the outboard tread edge side toward the inboard tread edge. The outboard middle lateral grooves are inclined with respect to a tire circumferential direction at angles smaller than those of the lateral grooves.

In a pneumatic tire, a land portion is formed in a tread surface of a tread portion on an outermost side in a tire lateral direction by a circumferential groove extending in a tire circumferential direction, and a ground contact edge is present in the land portion. The land portion includes a plurality of lug grooves provided in the tire circumferential direction and intersecting the ground contact edge, and an intersecting narrow groove provided outward of the ground contact edge in the tire lateral direction and intersecting a lug groove of the plurality of lug grooves.

A tire includes a tread surface portion with inclined grooves, 2ND longitudinal grooves, and shoulder longitudinal grooves; and an indicator portion that indicates a rotation direction of the tire in which a vehicle travels forward. The inclined groove gradually extends forward in the rotation direction toward a tire equator from the outside in the tire width direction. A front surface among inner surfaces defining the inclined groove includes a first side surface with an inner end portion to which the 2ND longitudinal groove is open, a second side surface positioned closer to an inside than the first side surface and of which an outer end portion is positioned closer to a rear side than the inner end portion of the first side surface, and a stepped surface that connects an inner edge of the first side surface to an outer edge of the second side surface and faces the outside.

A motorcycle tire includes a tread portion provided with inclined main grooves arranged between the tire equator and a first tread edge and sub-grooves smaller than the inclined main grooves in groove width. The inclined main grooves include inner main grooves each extending from a first end located on the tire equator side to a second end located on the first tread edge side with an inclination with respect to a tire circumferential direction, wherein no other grooves are provided between the first end of each inner main groove and the tire equator. The sub-grooves include first sub-grooves extending from the inner main grooves toward the tire equator with an opposite inclination direction to the inner main grooves with respect to the tire circumferential direction and terminating on the tire equator side without being communicated with any other grooves.

A pneumatic tire includes a tread portion including a pair of first main grooves, a pair of second main grooves, a first land portion between the first main grooves and a pair of second land portions each sectioned adjacent one of the pair of first main grooves and one of the pair of second main grooves. The first main grooves extend in a trapezoidal wave manner including inner elements, outer elements and inclined connecting elements. One of the second land portions is provided with a second lateral groove opened at one of the outer elements. The first land portion is provided with a recess having an opening at the one of the outer elements. In a tire circumferential direction, a center of the opening of the recess is located at a position different from a position of an extension line of a centerline of the second lateral groove.

A pneumatic tire comprising on a tread surface 1 a plurality of blocks 7, wherein: the blocks have an inclined groove 43 formed thereon; the inclined groove has a connecting portion 43a connected to the circumferential main grooves, a wide-width portion 43b connected to the connecting portion, and a narrow-width portion 43c connected to the wide-width portion; the wide-width portion and the narrow-width portion have inclination angles with respect to the tire circumferential direction smaller than the connecting portion; the blocks have a sipe 52a formed thereon, the sipe having one end opening to the connecting portion and the other end opening to the circumferential main grooves; and the sipe has a bent portion.

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.