An off-road tyre includes a tread portion being provided on a tread edge side with shoulder blocks arranged in a tyre circumferential direction. The shoulder blocks include at least one first shoulder block and at least one second shoulder block having a circumferential length greater than that of the at least one first shoulder block. The at least one first shoulder block includes a first ground contact surface, a second ground contact surface protruding outwardly from the first ground contact surface in a block height direction, and a first shallow groove extending between the first ground contact surface and the second ground contact surface.

A tire for running on rough terrain has a tread portion provided with crown blocks, middle blocks, and groove portions. Each of the crown blocks includes a ground contacting surface and a first wall surface located on a heel side in a tire rotational direction. The first wall surface is inclined to a toe side in the tire rotational direction as it goes inward in a tire radial direction from the ground contacting surface. Each of the groove portions has a length in the tire axial direction of 5% or more and 70% or less of a length in the tire axial direction of each of the middle blocks.

A motorcycle tire comprises a carcass having a bias structure, a band comprising a jointiess ply, and a tread rubber disposed on the radially outside of the band. The loss tangent of the tread rubber at a temperature of 0 deg C. is larger in a tread crown region than in tread shoulder regions. The carcass comprises an outer carcass ply of carcass cords. The angles of the carcass cords with respect to the tire circumferential direction are smaller in the tread crown region than in the tread shoulder regions.

A motorcycle tyre for off-road includes a tread portion including a bottom surface and connected bodies. The block connected bodies each include blocks protruding from the bottom surface and tie-bars protruding from the bottom surface with a height smaller than that of the blocks to connect the blocks with one another. The block connected bodies include a first connected body whose blocks and tie-bars are arranged so as to surround the bottom surface at least partially. The first connected body includes a first end block located on a first end in a longitudinal direction of the first connected body and a second end block located on a second end in the longitudinal direction of the first connected body. The first end block and the second end block are adjacent with one another, and no tie-bar connecting the first end block and the second end block is provided.

A pneumatic tire includes a tread portion and a pair of sidewall portions extending inward in a tire radial direction from both edges of the tread portion. At least one of the sidewall portions is provided with a vent line and a recessed portion adjacent to each other in the tire radial direction. The vent line protrudes from a sidewall outer surface and extends in a tire circumferential direction. The recessed portion is recessed from the sidewall outer surface at a first depth. A serration pattern, in which a plurality of ridges extending in the tire radial direction are arranged in the tire circumferential direction, is formed in the recessed portion. Each of heights of the ridges is smaller than the first depth.

A tire includes medial knobs and lateral knobs in right and left zones extending around the circumference. The tire includes a central zone in between two arrays of medial knobs. The central zone may include no knobs or knobs with a height less than 50% of the height of the lateral knobs.

A tire insert for vehicle wheel which has an annular element made in one piece of polymer material is provided. The annular element has a base portion suitable for being accommodated in a rim seat of a rim and an enlarged portion having a section larger than the base portion. The enlarged portion is shaped to have shape and size to always be spaced apart from an inner tire side when the tire is inflated to a predetermined standard working pressure. When the tire is deflated, the enlarged portion comes into contact with the tire to support the tire while the vehicle wheel is running. A vehicle wheel having a tire, a rim onto which the tire is mounted, and the tire insert is also provided.

A tire for a vehicle includes a tire body having a circumferentially extending tread portion with an outer surface and an inner surface. First and second sidewalls are joined to the tread portion, and the first and second sidewalls terminate in first and second edges, respectively, and are configured to be secured within a flange of a rim of a wheel. In addition, the tire includes a tire insert comprising a circumferential hoop of resilient material and positioned adjacent to the inner surface of the tread portion. The tire insert may have an arcuate cross section and a width that extends across from the first sidewall to the second sidewall. The resilient material of the tire insert may comprise spring steel of a steel alloy and be in a state of compression.

A two-wheeled vehicle tyre includes a tread portion which is provided with a row of crown blocks arranged on a tyre equator and a row of middle blocks arranged axially outwardly of the row of crown blocks. Circumferential pitch lengths of directly adjacent crown blocks are greater than circumferential pitch lengths of directly adjacent middle blocks.

A motorcycle tire comprises a tread portion comprising substantially triangular first regions each defined as being surrounded by a first main oblique groove, a second main oblique groove and a first tread edge. Each of the first regions is divided by sub grooves into blocks which include a largest block whose ground contacting surface has a maximum area, and a smallest block whose ground contacting surface has a minimum area in a range from 40% to 80% of the maximum area.