| 摘要 |
Provided is a pneumatic tire, which is configured to be in a tire posture where the tire is assembled to an applicable rim (R) to be once filled to a specified internal pressure which is then reduced to a pressure capable of allowing the tire (1) to maintain its shape, has a land portion surface of an intermediate land portion (20, 21) positioned inward in the tire radial direction relative to a virtual arc ( A ) circumscribing at least part of each of a land portion surface at the center position (C) of the center land portion (17) and a land portion surface of a shoulder land portion (18, 19), in a cross section in the tire width direction, so that a step depth ´ of the land portion surface of the intermediate land portion (20, 21) relative to the virtual arc ( A ) satisfies the following relation across the entire area of the land portion surface of the intermediate land portion (20, 21) in the tire width direction; r / 400 ‰¤ ´ ‰¤ r /100, where r is the tire radius from the tire center axis at the center position (C) of the center land portion (17). |
