Provided is a run flat tire comprising a side reinforcing layer on a sidewall part, wherein a rubber composition of the side reinforcing layer has a complex elastic modulus at 100° C. (E*.sub.100) of 5.0 to 17 MPa and a loss tangent at 60° C. (60° C. tan δ) of 0.020 to 0.100 MPa, and wherein, where a tire cross-sectional width is defined as Wt (mm) and a tire outer diameter is defined as Dt (mm), Wt and Dt satisfy any of the following inequality (1), (2), and (3):

Wt<225 and Dt≥59.078×Wt{circumflex over ( )}0.460  (1)

225≤Wt<235 and Dt≥59.078×Wt{circumflex over ( )}0.620−967.673  (2)

235≤Wt and Dt≥Wt{circumflex over ( )}0.6+750  (3)

A pneumatic tire mounted with surface fastener members for attaching an object to a tire inner surface, comprises: at least eight surface fastener members having an intermittent arrangement on a tread inner circumferential surface, the surface fastener members having a uniform cross-sectional dimension, an overall band-like shape, and a length in a tire axial direction from 50% to 120% of a maximum belt width of the pneumatic tire; wherein an angle θ between a longitudinal direction of the surface fastener members and the tire axial direction is from 0 degrees to 45 degrees; and an installation period in a tire circumferential direction is from 80% to 150% of the length in the tire axial direction of the surface fastener members.

A pneumatic tire mounted with surface fastener members for attaching an object to a tire inner surface, comprises: at least eight surface fastener members having an intermittent arrangement on a tread inner circumferential surface, the surface fastener members having a uniform cross-sectional dimension, an overall band-like shape, and a length in a tire axial direction from 50% to 120% of a maximum belt width of the pneumatic tire; wherein an angle θ between a longitudinal direction of the surface fastener members and the tire axial direction is from 0 degrees to 45 degrees; and an installation period in a tire circumferential direction is from 80% to 150% of the length in the tire axial direction of the surface fastener members.

A run-flat tire includes side reinforcing rubbers provided along tire width direction inner side surfaces of carcass side portions. A first inner liner is provided along a tire radial direction inner side surface of a carcass central portion and tire width direction inner side surfaces of the side reinforcing rubber. Both end portions of the first inner liner run along a contour in a cross-section along a tire rotational axis direction and are respectively formed further toward a tire radial direction outer side than tire radial direction inner side end portions of the side reinforcing rubber. A second inner liner extends along a surface, which is at a side opposite from the carcass central portion, of the first inner liner. Both end portions of the second inner liner are respectively formed further toward a tire radial direction inner side than the both end portions of the first inner liner, along a contour in a cross-section along the tire rotational axis direction.

A motor vehicle tire is disclosed with a pair of post-cure run-flat inserts, each of the pair of post-cure run-flat inserts is disposed within a tire cavity between a shoulder region and a respective upper sidewall region of the tire. The tire further includes a cylindrical sidewall defining an interior cylindrical cavity, each of the cylindrical sidewall and the interior cylindrical cavity extending 360 degrees about a rotational axis of the tire, the cylindrical sidewall having an exterior surface contacting a radially inner surface of an inner liner between the shoulder region and the respective upper sidewall region during a normal inflation condition of the tire.

A motor vehicle tire is disclosed with a pair of post-cure run-flat inserts, each of the pair of post-cure run-flat inserts is disposed within a tire cavity between a shoulder region and a respective upper sidewall region of the tire. The tire further includes a cylindrical sidewall defining an interior cylindrical cavity, each of the cylindrical sidewall and the interior cylindrical cavity extending 360 degrees about a rotational axis of the tire, the cylindrical sidewall having an exterior surface contacting a radially inner surface of an inner liner between the shoulder region and the respective upper sidewall region during a normal inflation condition of the tire.

A pneumatic tire has a side wall having a side surface and dimples formed on the side surface. The side surface has the tire maximum width point, the dimples are aligned along circumferential rows in concentric form with respect to the tire axis such that the dimples form lateral ribs and longitudinal ribs, the lateral ribs each have radially outer side surface and radially inner side surface and include first and second ribs, the first rib is formed such that the height from the dimple bottom at the inner side surface and the height from the dimple bottom at the outer side surface are equal, the second rib is formed such that the height from the dimple bottom at the inner side surface is greater than the height from the dimple bottom at the outer side surface, and the second rib is positioned radially inward from the maximum width point.

A run flat tire having improved run flat durability is provided. The run flat tire has a side wall part reinforced by a side reinforcing rubber part, and the side reinforcing rubber part is formed by a rubber composition which comprises 100 parts by mass of a diene rubber containing natural rubber and polybutadiene rubber, and from 0.1 to 4.0 parts by mass of a mercaptobenzimidazole compound.

Methods for treating the surface of a cured inner liner are disclosed. By use of these methods a treated, cured inner liner is produced which has a lower surface with increased adherability to other materials (e.g., adhesives). Treated, cured inner liners resulting from such methods as well as tires containing the treated inner liners.

A run flat tire having a side reinforcing rubber part is disclosed. The side reinforcing rubber part is formed by a rubber composition having a ratio (M50H/M50N) of tensile stress (M50H) in 50% elongation at a measurement temperature of 100° C. to tensile stress (M50N) in 50% elongation at a measurement temperature of 23° C. of from 1.0 to 1.3. A cushion rubber layer interposed between the side reinforcing rubber part and a bead filler is provided, and tensile stress in 50% elongation at a measurement temperature of 23° C. of a rubber composition forming the cushion rubber layer is larger than tensile stress in 50% elongation at a measurement temperature of 23° C. of the rubber composition forming the side reinforcing rubber part, and is smaller than tensile stress in 50% elongation at a measurement temperature of 23° C. of a rubber composition forming the bead filler.