A pneumatic tires include a tread, a pair of sidewalls, and a pair of bead portions that are arranged at intervals wider than a rim width of a corresponding regular rim in a non-rim-assembled state. Each of the pair of the bead portions includes a bead heel and a bead back surface. In the non-rim-assembled state, the bead back surface is formed with a recess. The bead back surface has a recess R portion having an arc shape. A center of curvature of the recess R portion is located in a radial range between a radial position that is 2.0 mm to the inner side in the tire radial direction and a radial position that is 9.0 mm to the outer side in the tire radial direction with reference to an outer end surface of a bead core in the tire radial direction.

A pneumatic tires include a tread, a pair of sidewalls, and a pair of bead portions that are arranged at intervals wider than a rim width of a corresponding regular rim in a non-rim-assembled state. Each of the pair of the bead portions includes a bead heel and a bead back surface. In the non-rim-assembled state, the bead back surface is formed with a recess. The bead back surface has a recess R portion having an arc shape. A center of curvature of the recess R portion is located in a radial range between a radial position that is 2.0 mm to the inner side in the tire radial direction and a radial position that is 9.0 mm to the outer side in the tire radial direction with reference to an outer end surface of a bead core in the tire radial direction.

Provided is a motorcycle tire 2 that can enhance a stiffness feeling while suppressing deterioration of a ground-contact feeling. A bead portion TB of the tire 2 includes a core 18. An outer surface of the bead portion TB includes a seat surface 24, a flange surface 26, and a heel surface 28. An inner diameter dw of the core 18, a rim diameter D, an inner diameter dA of the tire 2 at a heel reference point PH, and an inner diameter dB of the tire 2 at the seat reference point PS satisfy the following formulas.

dw/D≥1.0041

dA/D≤0.9966

dA−1.72≤dB≤dA−0.73

Provided is a motorcycle tire 2 that can enhance a stiffness feeling while suppressing deterioration of a ground-contact feeling. A bead portion TB of the tire 2 includes a core 18. An outer surface of the bead portion TB includes a seat surface 24, a flange surface 26, and a heel surface 28. An inner diameter dw of the core 18, a rim diameter D, an inner diameter dA of the tire 2 at a heel reference point PH, and an inner diameter dB of the tire 2 at the seat reference point PS satisfy the following formulas.

dw/D≥1.0041

dA/D≤0.9966

dA−1.72≤dB≤dA−0.73

A tire and beadlock clip system for assembly on a rim employs a tire of a type having an annular recess in each sidewall of the tire. As a result of the recessed sidewall structure, one or more beadlock clip can be directly engaged, after seating of the tire, between a corresponding abutment surface region, provided on the outer surface of the sidewall and oriented to face away from the rim lip, and an opposing surface of the rim, thereby opposing separation of the bead region from the bead seat. Preferably, the clips are resilient clips which can be snap-fit into engagement manually or with a mallet. Alternatively, a positive clamping mechanism may be provided.

A pneumatic tire comprises: a tread portion; a pair of sidewall portions; a pair of bead portions each with a bead core embedded therein; a toroidal carcass extending between the bead portions; and a sidewall rubber disposed axially outside the carcass in each of the sidewall portions. The bead portion has a bead bottom surface which contacts with a bead seat of a wheel rim when the tire is mounted thereon. The bead bottom surface comprises an axially inner region including a bead toe and an axially outer region including a bead heel. The axially inner region is formed by a canvas chafer. The axially outer region is formed by the sidewall rubber extended radially inwardly from the sidewall portion.

A pneumatic tire comprises: a tread portion; a pair of sidewall portions; a pair of bead portions each with a bead core embedded therein; a toroidal carcass extending between the bead portions; and a sidewall rubber disposed axially outside the carcass in each of the sidewall portions. The bead portion has a bead bottom surface which contacts with a bead seat of a wheel rim when the tire is mounted thereon. The bead bottom surface comprises an axially inner region including a bead toe and an axially outer region including a bead heel. The axially inner region is formed by a canvas chafer. The axially outer region is formed by the sidewall rubber extended radially inwardly from the sidewall portion.

A tire (1) having at least one sidewall (3), intended to interact with a sidewall insert (9) by way of an anchor (6), and aims to personalize the design of the tire sidewall. The anchor has a recess (7) formed in an axially outer sidewall layer (30), with a protuberance (8), which is raised in relation to the recess bottom (71) and extends from the recess bottom (71) to the vicinity of the axially outer sidewall face (31) and the protuberance (8) has, in any meridian plane (YZ), a minimum width Lpmin in the vicinity of the recess bottom (71) so as to ensure the anchoring of the sidewall insert (9) intended to interact with the anchor (6).

A tire (1) having at least one sidewall (3), intended to interact with a sidewall insert (9) by way of an anchor (6), and aims to personalize the design of the tire sidewall. The anchor has a recess (7) formed in an axially outer sidewall layer (30), with a protuberance (8), which is raised in relation to the recess bottom (71) and extends from the recess bottom (71) to the vicinity of the axially outer sidewall face (31) and the protuberance (8) has, in any meridian plane (YZ), a minimum width Lpmin in the vicinity of the recess bottom (71) so as to ensure the anchoring of the sidewall insert (9) intended to interact with the anchor (6).

A tire structure disposed at a rim is provided. The tire structure includes a tire body, a flexible sealing member and a nozzle. The tire body is ring-shaped and includes a groove and two beads. The flexible sealing member is connected to the tire body to form an inflating space with the groove, and the flexible sealing member includes a through hole. The nozzle is disposed at the flexible sealing member. The nozzle includes a base and a valve stem. The base includes a screw hole and is disposed at a far side of the flexible sealing member. The screw hole corresponds to the through hole. The valve stem includes a fastening end and an inflating channel. The fastening end is configured to insert into the screw hole, and the inflating channel is configured to allow the gas to pass therethrough.