Pneumatic tire

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 φoo 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, wherein
• a maximum width Wg2_sh of the groove bottom portion in the circumferential main groove on the outer side in the tire width direction among the first and second circumferential main grooves has a relationship 0.55≤Wg2_sh/Wg2_ce≤0.75 to a maximum width Wg2_ce of the groove bottom portion in the circumferential main groove on the inner side in the tire width direction.

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,
• 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 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 an inner side in the tire width direction being defined in the outer edge portion, and
• the outer maximum amplitude position of the outer edge portion in the groove opening portion being disposed to be offset in the tire circumferential direction with respect to the outer maximum amplitude position of the outer edge portion of the groove bottom portion, wherein
• an offset amount φoo between the outer maximum amplitude positions in the outer edge portions of the groove opening portion and the groove bottom portion has a relationship 0.03≤φoo/λ1o≤0.45 to a wavelength λ1o of the outer edge portion of the groove opening portion, and
• a groove wall angle α1oo at the outer maximum amplitude position of the outer edge portion of the groove opening portion has a relationship α2oo<α1oo to a groove wall angle α2oo at the outer maximum amplitude position of the outer edge portion of the groove bottom portion.