Pneumatic tire

A pneumatic tire, comprising:

• a circumferential main groove extending in a tire circumferential direction;
• and
• a land portion defined by the circumferential main groove,
• the circumferential main groove comprising a groove opening portion and a groove bottom portion each having a zigzag shape or a wave-like shape with an amplitude in a tire width direction,
• an outer maximum amplitude position projecting to an outer side in the tire width direction and an inner maximum amplitude position projecting to an inner side in the tire width direction being defined in a center line of each of the groove opening portion and the groove bottom portion, and
• the outer maximum amplitude position of the center line of the groove opening portion being disposed to be offset in the tire circumferential direction with respect to the outer maximum amplitude position of the center line of the groove bottom portion.

A pneumatic tire, comprising:

• a plurality of circumferential main grooves extending in a tire circumferential direction, the plurality of circumferential main grooves including a first circumferential main groove and a second circumferential main groove;
• and
• a plurality of land portions defined by the plurality of circumferential main grooves,
• the first and second circumferential main grooves adjacent to one another each comprising a groove opening portion and a groove bottom portion each having a zigzag shape or a wave-like shape with an amplitude in a tire width direction,
• in each of the groove opening portion and the groove bottom portion, an outer edge portion on an outer side in the tire width direction and an inner edge portion on an inner side in the tire width direction being defined, an outer maximum amplitude position projecting to the outer side in the tire width direction and an inner maximum amplitude position projecting to the inner side in the tire width direction being defined in each of the outer edge portion and the inner edge portion,
• in the first circumferential main groove, an offset amount (No in the tire circumferential direction between the outer maximum amplitude position of the groove opening portion and the outer maximum amplitude position of the groove bottom portion having a relationship 0.03≤φoo/λ1o≤0.25 to a wavelength λ1o of the outer edge portion of the groove opening portion, and
• a displacement amount δ in the tire circumferential direction between the outer maximum amplitude position of the groove bottom portion in the first circumferential main groove and the outer maximum amplitude position of the groove bottom portion in the second circumferential main groove having a relationship 0≤δ/λ1o≤0.03 to the wavelength λ1o of the groove opening portion in the first circumferential main groove.