A pneumatic tire having a tread reinforcing component disposed between a tire inner cavity surface and a tire ground contacting surface, and made of a thermoplastic resin. On an arbitrary reference line which extends across the tread reinforcing component in parallel with the tire equator, a distance L1 in the tire radial direction from the tire inner cavity surface to the thickness center point of the tread reinforcing component is in a range of 50% to 95% of a distance L0 in the tire radial direction from the tire inner cavity surface to the tire ground contacting surface.

Provided is a rubber composition for base tread which can provide excellent steering stability and rolling resistance and improve pass-by noise properties when applied to a tire. The present disclosure discloses a rubber composition for base tread to be used for base tread of a tread portion of a tire, where a ratio of storage modulus at 0° C. (0° C. E′) to storage modulus at 30° C. (30° C. E′) (0° C. E′/30° C. E′) is in a range of 1.3 to 2.0.

The present disclosure relates to a method and manufacturing method for a tire tread composition having absorption properties with high electric conductivity and excellent wear resistance. Specifically, the present disclosure relates to the fabrication of a tire composition to be used as a non-pneumatic tire, the tire composition can be used as a mobile electrode with a water supply means that can identify the location of defects in the buried conductor using the tire electrode manufacturing with improved conductivity and contact resistance with the ground even though the tire compound has wear resistance by lowering the water swelling rate compared to the previous technology.

Provided is a tire having excellent rolling resistance and improved pass-by noise performance. The tire is a pneumatic tire comprising a side rubber provided on an outer side of a carcass in a tire width direction, in a sidewall portion, wherein a thickness of the side rubber in the tire width direction at a tire maximum width position is 1 mm or more, and a ratio 0° C. tan δ/30° C. tan δ of 0° C. tan δ to 30° C. tan δ of the side rubber is 2.00 or more, where the 0° C. tan δ is tan δ at 10 Hz and 0° C., and the 30° C. tan δ is tan δ at 10 Hz and 30° C.

Provided is a tire having excellent rolling resistance and improved pass-by noise performance. A tire comprises a tread portion that includes a base rubber and a cap rubber located on an outer side of the base rubber in a tire radial direction, wherein a thickness of the base rubber in the tire radial direction is 1 mm or more, 30° C. tan δ of the base rubber is 0.20 or less, and a ratio 0° C. tan δ/30° C. tan δ of 0° C. tan δ to 30° C. tan δ of the base rubber is 2.90 or more, where the 30° C. tan δ is tan δ at 10 Hz and 30° C., and the 0° C. tan δ is tan δ at 10 Hz and 0° C.

A pneumatic tire having a tordial tire framework member having bead portions, sidewall portions and an under tread portion, and a ground contacting tread component disposed radially outside the under tread portion. The ground contacting tread component is made of a first resin material. The sidewall portions and the under tread portion are made of a second resin material. The bead portions are made of a third resin material. The tensile elastic moduli E1 to E3 of the first to third resin materials M3, respectively, satisfy E1<E2<E3.

A rubber compound for heavy-duty truck or bus tire treads may comprise: 5 to 100 parts by weight per hundred parts by weight rubber (phr) of a long chain branched cyclopentene ring opening rubber (LCB-CPR) having a glass transition temperature (Tg) of −120° C. to −80° C., a g′vis of 0.50 to 0.91, and a ratio of cis-to-trans of 40:60 to 5:95; 0 phr to 95 phr of a rubber selected from a group consisting of a natural rubber (NR), a polybutadiene rubber (BR), and a combination thereof; 30 phr to 90 phr of a reinforcing filler; and 0.5 phr to 20 phr of a process oil.

Tire comprising at least one working layer (41). The radially outermost one thereof comprises at least one undulation (412) radially on the outside of the points of the working layer (41) that are in line with the centre of the bottom face (243) of the major groove (24) closest to undulation (412). The undulation (412) of the radially outermost working layer (41) is such that, over at least 10% of the radially outer surface (ROS) of the said working layer (41), the radial distance (do) between the radially outer surface (ROS) and the tread surface (21) is at least 1 mm less than the radial distance (dc) between the radially outer surface (ROS) and the tread surface (21), which is the distance in line with the centre of the bottom face (243) of the major groove (24) closest to the said undulation (412).

The present invention aims to provide tire rubber composition with significantly improved overall performance in terms of wet grip performance and fuel economy, and pneumatic tires including the rubber compositions. The tire rubber compositions of the present invention have a tan δ versus temperature curve whose peak tan δ and half width satisfy the following relationship (1): Peak tan δ/Half width ≥ 0.025 (1).

There is provided a non-pneumatic tire (1), which includes an attachment body (11) that is attached to an axle, a ring-shaped body (13) that surrounds the attachment body (11) from an outside in a tire radial direction, a connection member (15) that displaceably connects the attachment body (11) and the ring-shaped body (13) to each other, and a cylindrical tread member (16) that is externally mounted on the ring-shaped body (13), in which the tread member (16) includes a base rubber portion (41) that is positioned at an inside in the tire radial direction, and a cap rubber portion (42) that is positioned at an outside of the base rubber portion (41) in the tire radial direction, and in which the rigidity of the base rubber portion (41) is lower than the rigidity of the cap rubber portion (42).