Abstract: A two-wheeled vehicle tire for running on rough terrain, the tire comprising a tread portion. The tread portion comprises a plurality of middle blocks located between a tire equator and a tread edge. The plurality of middle blocks comprises at least one first middle block having an outer surface in a tire radial direction, and at least one second middle block having an outer surface in the tire radial direction whose area is larger than an area of the outer surface of the at least one first middle block. The outer surface in the tire radial direction of the at least one first middle block is not provided with sipes. The outer surface of the at least one second middle block is provided with at least one sipe.

Abstract: An object of the present disclosure is to provide a rubber composition from which a sheet conveyance roller having an excellent friction coefficient can be produced. The present disclosure provides a sheet conveyance roller rubber composition containing a base rubber and a petroleum resin, wherein the base rubber contains an ethylene-?-olefin copolymer. The sheet conveyance roller rubber composition is preferably obtained by kneading the petroleum resin and the base rubber containing the ethylene-?-olefin copolymer at a temperature equal to or higher than a softening point of the petroleum resin.

Abstract: A tire that can achieve both desired visibility and design properties of a mark provided on a sidewall portion is provided. A tire has a mark provided on a surface of a sidewall portion so as to be raised from the surface. The mark includes a curved surface portion curved so as to project in a direction substantially perpendicular to the surface of the sidewall portion, and a flat surface portion provided on at least one side in a tire circumferential direction of the curved surface portion, and a raised height h of the flat surface portion from the surface gradually decreases with increasing distance in the tire circumferential direction from the curved surface portion.

Abstract: A golf club head includes a striking face with a plurality of scorelines. A first virtual vertical plane is perpendicular to the striking face and passes through a toe-wardmost extent of the scorelines, and a second virtual vertical plane is parallel to the first virtual vertical plane and passes through a heel-wardmost extent of the scorelines. A central region bounded by the first virtual vertical plane, the second virtual vertical plane, and a striking face periphery has a first average surface roughness Ra1 of between about 40 ?in and about 180 ?in. And a majority of a toe region bounded by the first vertical plane and the striking face periphery is textured to have a second average surface roughness Ra2 no less than 1.5 times Ra1.

Abstract: An object of the present invention is to improve propulsion performance on a snow-covered road surface, and provided is a tire with a tread portion having a groove, wherein the cap rubber layer forming the tread portion contains 40 parts by mass or more and 80 parts by mass or less of styrene-butadiene rubber (SBR) having a styrene content of 25% by mass or less in 100 parts by mass of its rubber component, and 60 parts by mass or more of a filler with respect to 100 parts by mass of the rubber component, and is formed from a rubber composition having a loss tangent 10° C. tan ? measured under the conditions of temperature of 10° C., frequency of 10 Hz, initial strain of 5%, and dynamic strain rate of 1% and in deformation mode; tensile of less than 0.28, and a glass transition temperature Tg (° C.) of ?40° C. or lower; and the glass transition temperature Tg (° C.) and the depth G(mm) of the groove satisfy Tg??0.5×G?35.

Abstract: It is provided a tire having a tread portion, wherein the cap rubber layer forming the tread portion is formed from a rubber composition containing 60 parts by mass or more and 80 parts by mass or less of styrene-butadiene rubber having a styrene content of 25% by mass or less in 100 parts by mass of the rubber component, and containing 100 parts by mass or less of silica with respect to 100 parts by mass of the rubber component, whose loss tangent (30° C. tan ?) is 0.25 or less; and the thickness of the tread portion is 6 mm or more and 12 mm or less; and an object of the present invention is to improve rolling resistance at the time of starting.

Abstract: Provided is a tire which improves steering stability during high-speed running and the tire has a tread portion, wherein the cap rubber layer forming the tread portion is formed from a rubber composition containing 40 parts by mass or more and 60 parts by mass or less of styrene-butadiene rubber (SBR) with a styrene content of 25% by mass or less in 100 parts by mass of the rubber component, and 100 parts by mass or more of silica with respect to 100 parts by mass of the rubber component; and the tread portion has a thickness of 8.5 mm or less.

Abstract: Provided is a tire having a tread portion with a thickness of 15 mm or less, wherein the cap rubber layer forming the tread portion is formed from a rubber composition containing 40 parts by mass or more and 80 parts by mass or less of styrene-butadiene rubber (SBR) with a styrene content of 25% by mass or less, in 100 parts by mass of the rubber component, and in addition to the rubber component, containing silica and carbon black; and having loss tangent 30° C. tan ? of more than 0.18 measured under the conditions of temperature of 30° C., frequency of 10 Hz, initial strain of 5%, dynamic strain rate of 1%, and deformation mode: tensile; wherein the carbon black content is 15 parts by mass or more with respect to 100 parts by mass of the rubber component, and the ratio of the silica content to the carbon black content is 1 or more; and an object of the present invention is to improve chipping resistance performance when running on a rough road surface at high speed.

Abstract: A tire having a tread portion, which can suppress deterioration in braking performance of tires on an icy road surface after repeated running; and the cap rubber layer forming the tread portion is formed from a rubber composition containing 40 parts by mass or more and 80 parts by mass or less of styrene-butadiene rubber (SBR) having a styrene content of 25% by mass or less in 100 parts by mass of the rubber component, containing silica and carbon black together with the rubber component, and having the loss tangent 30° C. tan ? of less than 0.25 measured under the conditions of temperature of 30° C., frequency of 10 Hz, initial strain of 5%, dynamic strain rate of 1%, and deformation mode: tensile; in the rubber composition, the carbon black content is more than 15 parts by mass with respect to 100 parts by mass of the rubber component, and the ratio of the silica content to the carbon black content is 1 or more; and the thickness of the tread portion is 15 mm or less.

Abstract: Provided is a tire with a tread portion having a circumferential groove communicating in the circumferential direction, wherein the cap rubber layer forming the tread portion is formed from a rubber composition which contains 40 parts by mass or more and 80 parts by mass or less of styrene-butadiene rubber (SBR) having a styrene content of 25% by mass or less, and 60 parts by mass or more of a filler with respect to 100 parts by mass of the rubber component, and has a loss tangent 10° C. tan ? of less than 0.28, and a glass transition temperature Tg (° C.) of ?40° C. or lower; and the glass transition temperature Tg (° C.) and the depth G (mm) of the circumferential groove satisfy Tg??0.5×G?35; and an object of the present invention is to improve off-road performance of a tire.

Abstract: A tire 2 includes a pair of beads 10, a carcass 12, a pair of steel reinforcing layers 20, a pair of fiber reinforcing layers 26, and a tag member 28. Each bead 10 includes an apex 40. A carcass ply 48 included in the carcass 12 includes a ply body 50 and a pair of turned-up portions 52. An outer end PR1 of each fiber reinforcing layer 26 is located between an end PF of the turned-up portion 52 and an outer end PA of the apex 40. An RFID tag 62 of the tag member 28 is located between the end PF of the turned-up portion 52 and the outer end PA of the apex 40. In the fiber reinforcing layer 26, an outer end 60f of a second reinforcing ply 60 is located radially outward of an outer end 58f of a first reinforcing ply 58.

Abstract: A tire having a tread portion which can improve wear resistance performance when running on uneven ground, wherein the cap rubber layer forming the tread portion contains styrene-butadiene rubber (SBR), isoprene-based rubber, and silica; the content of the styrene-butadiene rubber (SBR) in 100 parts by mass of the rubber component is 40 parts by mass or more and 60 parts by mass or less, and the styrene content of the styrene-butadiene rubber (SBR) is 25% by mass or less; the content of the isoprene-based rubber in 100 parts by mass of the rubber component is more than 30 parts by mass; the content of the silica with respect to 100 parts by mass of the rubber component is 60 parts by mass or less; and the thickness of the tread portion is 9.4 mm or less.

Abstract: A tire 2 includes a pair of heads 10, a carcass 12, a pair of sidewalls 6, a pair of chafers 8, and a tag member 26 including an RFID tag 56. Each of the beads 10 includes an inner apex 40 and an outer apex 42. A carcass ply 48 included in the carcass 12 includes a ply body 50 and a pair of turned-up portions 52. The tag member 26 is in contact with the outer apex 42 on a radially outer side of an end PF of the turned-up portion 52, the RFID tag 56 is located between an outer end PG2 of the outer apex 42 and an outer end PB of the chafer 8, and an outer end 26s of the tag member 26 is located radially outward of the outer end PB of the chafer 8.

Abstract: A tire having improved chipping resistance performance is provided, wherein the tire has a tread portion, the tread portion has a cap rubber layer and a base rubber layer provided radially inward of the cap rubber layer, the cap rubber layer contains, as a rubber component, 40 parts by mass or more and 60 parts by mass or less of styrene-butadiene rubber (SBR) with a styrene content of 25% by mass or less, and 30 parts by mass or less of isoprene-based rubber, in 100 parts by mass of the rubber component, and, as a filler, 100 parts by mass or less of silica with respect to 100 parts by mass of the rubber component; and is formed from a rubber composition having a loss tangent 30° C. tan ? of 0.25 or less measured under conditions of temperature of 30° C., frequency of 10 Hz, initial strain of 5%, and dynamic strain rate of 1%, and deformation mode: tensile; and the ratio of the thickness of the cap rubber layer to the thickness of the base rubber layer is 2.3 or more.

Abstract: A tire 2 includes a pair of chafers 8 and a tag member 26. The chafer 8 comes into contact with a rim R. The tag member 26 includes an RFID tag 54. A state where a load equal to 50% of a normal load is applied to the tire 2 in a normal state and the tire 2 is brought into contact with a flat surface FS is a standard ground-contact state. In the standard ground-contact state, the RFID tag 54 is located between an axially outer end PRa of the rim R and a maximum width position PWs of the tire 2 in an axial direction, and is located between a radially outer end PRr of the rim R and the maximum width position PWs of the tire 2 in a radial direction.

Abstract: A tire includes a first land portion with a ground contacting surface provided with inclined sipes inclined in a first direction to the tire axial direction. The inclined sipes include first and second inclined sipes arranged adjacently in the tire circumferential direction. Each first inclined sipe includes a first deep-bottom portion located on a first circumferential edge side, and a first shallow-bottom portion located on a second circumferential edge side and having a smaller depth than the first deep-bottom portion. Each second inclined sipe includes a second deep-bottom portion located on the second circumferential edge side, and a second shallow-bottom portion located on the first circumferential edge side and having a smaller depth than the second deep-bottom portion. Each second deep-bottom portion is arranged so as to overlap a projection region in which a respective first deep-bottom portion is expanded parallel to the tire axial direction.

Abstract: A pneumatic tire comprises a carcass, a bead apex rubber, and a bead reinforcing cord layer. The bead apex rubber has a radially outer edge positioned at a radial height of 15% to 25% of the tire section height. The bead reinforcing cord layer comprises an axially inner first part disposed on the axially outside of a carcass ply main portion, and an axially outer second part disposed on the axially inside of a carcass ply turned-up portion. The radially outer edge of the axially outer second part is radially outwardly spaced apart from the radially outer edge of the carcass ply turned-up portion by at least 5 mm.

Abstract: A putter-type golf club head that, when oriented in a reference position, includes a striking wall extending in the heel to toe direction and defines a substantially planar striking face for hitting a golf ball. A central elongate member is in communication with, and extends rearward from, the striking wall. An upper surface of the central elongate member includes a plurality of separate alignment elements. At least one of the plurality of alignment elements has an edge that extends substantially parallel to the striking face. The length of the parallel edge is substantially equivalent to the diameter of a golf ball.

Abstract: A tire including a tread portion, the tread portion having at least one main groove continuously extending in the tire circumferential direction, the tread portion including a rubber having a hardness at 60° C. of 58 or higher and a hardness at 0° C. of not more than 115% of the hardness at 60° C., the tread portion having a S50/S0 ratio of more than 1, wherein S0 denotes the sea proportion (%) in the tread ground contact surface of the new tire, and S50 denotes the sea proportion (%) when the tread portion is worn until the depth of the main groove reaches 50% of that of the new tire.