PNEUMATIC TIRE

DRIVE January 31, 2024
Source
A pneumatic tire includes a run-flat reinforcing layer (19) disposed on an inner side in a width direction of a carcass layer (13), and a second filler (20) disposed between a turned back portion of the carcass layer (13) and a rim cushion rubber (17). Additionally, a point (P) on a tire outer circumferential surface is defined, the point (P) is located at a position corresponding to 150% of a rim flange height from a measurement point of a rim diameter of a specified rim, a perpendicular line (L) is defined, and the perpendicular line (L) is drawn from the point (P) to a tire inner circumferential surface. At this time, a rubber gauge (G1) of the run-flat reinforcing layer (19) on the perpendicular line (L), and a rubber gauge (G2) of a region from the turned back portion of the carcass layer (13) to a tire outer surface have the relationship 0 < G1/G2 ≤ 0.65.

Discussion in the ATmosphere

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