Abstract: A tire includes a block 30. The block 30 includes a land 36b, a transverse groove 48b, a longitudinal groove 50b, and a side surface 38b. The land 36b is flat. The transverse groove 48b is recessed from the land 36b. The transverse groove 48b has inner and outer ends 52 and 54 in an axial direction of the tire. The inner end 52 of the transverse groove 48b is open on the side surface 38b. The outer end 54 of the transverse groove 48b is not open on the side surface 38b. The transverse groove 48b is localized in the inner region of the block 30 in the axial direction.

Abstract: A tire has a block pattern. The block pattern includes a plurality of linked block pairs. Each linked block pair includes two blocks 28 and a tie bar 30 interposed between the two blocks 28 and linking the two blocks 28 together. The tie bar 30 has a toe end 40 having a height equal to or smaller than a height of the blocks 28 and a heel end 38 having a height smaller than the height of the toe end 40.

Abstract: A motorcycle tyre for traveling on rough terrain, the tyre includes a tread portion provided with blocks. The at least one of the blocks includes a ground contact surface having a pair of lateral edges extending in a tyre axial direction. The at least one of the blocks is provided with a pair of lateral narrow grooves extending in the tyre axial direction on the ground contact surface to form a pair of edge-side portions defined between the pair of lateral narrow grooves and the pair of lateral edges. The at least one of the pair of edge-side portions includes a neck portion having a minimum circumferential length thereof, wherein a circumferential length of the at least one of the pair of edge-side portions increases toward axially both sides from the neck portion.

Abstract: A tire includes a block 30. The block 30 includes a land 36b, a transverse groove 48b, a longitudinal groove 50b, and a side surface 38b. The land 36b is flat. The transverse groove 48b is recessed from the land 36b. The transverse groove 48b has inner and outer ends 52 and 54 in an axial direction of the tire. The inner end 52 of the transverse groove 48b is open on the side surface 38b. The outer end 54 of the transverse groove 48b is not open on the side surface 38b. The transverse groove 48b is localized in the inner region of the block 30 in the axial direction.

Abstract: A tire has a block pattern. The block pattern includes a plurality of linked block pairs. Each linked block pair includes two blocks 28 and a tie bar 30 interposed between the two blocks 28 and linking the two blocks 28 together. The tie bar 30 has a toe end 40 having a height equal to or smaller than a height of the blocks 28 and a heel end 38 having a height smaller than the height of the toe end 40.

Abstract: A two-wheeled vehicle tire includes a carcass extending between bead cores each disposed in a respective one of bead portions through a tread portion and sidewall portions, the carcass including at least one carcass ply having a ply main portion extending between the bead cores through the tread portion, and a bead apex rubber extending radially outwardly from each bead core. The bead apex rubber includes a first rubber portion arranged adjacent to the ply main portion, and a second rubber portion arranged axially outwardly of the first rubber portion, the first rubber portion has a first end positioning radially outermost thereof, the second rubber portion has a second end positioning radially outermost thereof, and the first end is located radially outwardly of the second end.

Abstract: A tire 1 comprises a tread portion 2 provided with blocks 10 so that the tread portion has a land ratio of from 18% to 35%. The blocks 10 include grooved blocks 10 provided with a zoning groove 16 which defines a tall section 12 of the grooved block having a ground contacting higher top surface 13, and a short section 14 of the grooved block having a ground contacting lower top surface 15 positioned radially inside the higher top surface 13. The depth da of the zoning groove 15 measured from the lower top surface 15 is less than 20% of the maximum radial height H1 of the grooved block 10.

Abstract: A two-wheeled vehicle tire includes a tread portion having a designated rotational direction and being provided with at least three kinds of blocks including first blocks each having a trailing edge extending substantially in parallel with a tire axial direction, second blocks each having a trailing edge inclined a first direction with respect to the tire axial direction and third blocks each having a trailing edge inclined in a second direction opposite to the first direction with respect to the tire axial direction. At least two different kinds of blocks selected from a group of the first blocks, the second blocks and the third blocks are provided on each of a crown region, middle regions and shoulder regions of a tread portion.

Abstract: A two-wheeled vehicle tire includes a carcass extending between bead cores each disposed in a respective one of bead portions through a tread portion and sidewall portions, the carcass including at least one carcass ply having a ply main portion extending between the bead cores through the tread portion, and a bead apex rubber extending radially outwardly from each bead core. The bead apex rubber includes a first rubber portion arranged adjacent to the ply main portion, and a second rubber portion arranged axially outwardly of the first rubber portion, the first rubber portion has a first end positioning radially outermost thereof, the second rubber portion has a second end positioning radially outermost thereof, and the first end is located radially outwardly of the second end.

Abstract: A motorcycle tyre for traveling on rough terrain, the tyre includes a tread portion provided with blocks. The at least one of the blocks includes a ground contact surface having a pair of lateral edges extending in a tyre axial direction. The at least one of the blocks is provided with a pair of lateral narrow grooves extending in the tyre axial direction on the ground contact surface to form a pair of edge-side portions defined between the pair of lateral narrow grooves and the pair of lateral edges. The at least one of the pair of edge-side portions includes a neck portion having a minimum circumferential length thereof, wherein a circumferential length of the at least one of the pair of edge-side portions increases toward axially both sides from the neck portion.

Abstract: A motorcycle tire for running on rough terrain includes a tread portion being provided with a first block pair including a shoulder block and a middle block arranged adjacently in an axial direction of the tire through a first groove bottom having a first thinnest rubber portion. The shoulder block includes a ground contact surface with an axially inner edge and a tread edge. The middle block includes a ground contact surface with an axially outer edge. In a first tire cross-section passing the first block pair, a distance from the first thinnest rubber portion to the axially inner edge of the shoulder block is set greater than a distance from the first thinnest rubber portion to the axially outer edge of the middle block.

Abstract: Provided is a motorcycle tire (1) for traveling on rough terrain, the tire having a block (10) provided to a tread section (2). The block (10) has the following: a block lateral surface body part (15) that extends straight from the edge of a tread surface (12) inward in the tire radial direction; and a skirt section (20) that connects the block lateral surface body part (15) and a groove bottom surface (9). The skirt section (20) has the following: a flat section (21) that extends in a straight line on the groove bottom surface (9) side; and a curved section (22) that connects, in a beveled arc, the area between the flat section (21) and the block lateral surface body part.

Abstract: A tire 1 comprises a tread portion 2 provided with blocks 10 so that the tread portion has a land ratio of from 18% to 35%. The blocks 10 include grooved blocks 10 provided with a zoning groove 16 which defines a tall section 12 of the grooved block having a ground contacting higher top surface 13, and a short section 14 of the grooved block having a ground contacting lower top surface 15 positioned radially inside the higher top surface 13. The depth da of the zoning groove 15 measured from the lower top surface 15 is less than 20% of the maximum radial height H1 of the grooved block 10.

Abstract: A two-wheeled vehicle tire includes a tread portion having a designated rotational direction and being provided with at least three kinds of blocks including first blocks each having a trailing edge extending substantially in parallel with a tire axial direction, second blocks each having a trailing edge inclined a first direction with respect to the tire axial direction and third blocks each having a trailing edge inclined in a second direction opposite to the first direction with respect to the tire axial direction. At least two different kinds of blocks selected from a group of the first blocks, the second blocks and the third blocks are provided on each of a crown region, middle regions and shoulder regions of a tread portion.

Abstract: A motorcycle tire comprises a tread portion provided with a block pattern. The block pattern comprises block groups each consisting of at least five blocks Bg arranged along an oblique zone X so that the centroids M of the treads of the blocks Bg are positioned within the oblique zone X. The oblique zone X has a width of not more than 4 mm. The oblique zone X is inclined at an angle ? of from 1 to 10 degrees with respect to the tire circumferential direction.

Abstract: A motorcycle tire for running on rough terrain includes a tread portion being provided with a first block pair including a shoulder block and a middle block arranged adjacently in an axial direction of the tire through a first groove bottom having a first thinnest rubber portion. The shoulder block includes a ground contact surface with an axially inner edge and a tread edge. The middle block includes a ground contact surface with an axially outer edge. In a first tire cross-section passing the first block pair, a distance from the first thinnest rubber portion to the axially inner edge of the shoulder block is set greater than a distance from the first thinnest rubber portion to the axially outer edge of the middle block.

Abstract: Provided is a motorcycle tire (1) for traveling on rough terrain, the tire having a block (10) provided to a tread section (2). The block (10) has the following: a block lateral surface body part (15) that extends straight from the edge of a tread surface (12) inward in the tire radial direction; and a skirt section (20) that connects the block lateral surface body part (15) and a groove bottom surface (9). The skirt section (20) has the following: a flat section (21) that extends in a straight line on the groove bottom surface (9) side; and a curved section (22) that connects, in a beveled arc, the area between the flat section (21) and the block lateral surface body part.