Tire

A tire comprising:

• a tread portion having a first tread ground-contact end;
• and
• a buttress portion extending outward in a tire axial direction from the first tread ground-contact end, wherein
• the tread portion includes:
• a middle position in the tire axial direction between the first tread ground-contact end and a tire equator,
• a crown region between the tire equator and the middle position, and
• a shoulder region between the first tread ground-contact end and the middle position,
• the buttress portion has a first land ratio which is a land portion ratio between the first tread ground-contact end and a first position separated from an outer end in a tire radial direction of the tread portion inward in the tire radial direction by a distance which is 23% of a tire cross-sectional height Ha,
• a second land ratio of the shoulder region is larger than a third land ratio of the crown region and the first land ratio of the buttress portion,
• the tread portion includes a plurality of grooves,
• the plurality of grooves include a plurality of shoulder lateral grooves connected to the first tread ground-contact end,
• the buttress portion includes a plurality of buttress lateral grooves connected to the first tread ground-contact end,
• less than half of the plurality of shoulder lateral grooves are connected to any of the plurality of buttress lateral grooves, and
• the plurality of buttress lateral grooves include:
• a plurality of first buttress lateral grooves,
• a plurality of second buttress lateral grooves different in configuration from the first buttress lateral grooves,
• a plurality of third buttress lateral grooves different in configuration from the first buttress lateral grooves and the second buttress lateral grooves, and
• a plurality of fourth buttress lateral grooves different in configuration from the first buttress lateral grooves, the second buttress lateral grooves, and the third buttress lateral grooves.

A tire comprising:

• a tread portion having a first tread ground-contact end;
• and
• a buttress portion extending outward in a tire axial direction from the first tread ground-contact end, wherein
• the tread portion includes:
• a middle position in the tire axial direction between the first tread ground-contact end and a tire equator,
• a crown region between the tire equator and the middle position, and
• a shoulder region between the first tread ground-contact end and the middle position,
• the buttress portion has a first land ratio which is a land portion ratio between the first tread ground-contact end and a first position separated from an outer end in a tire radial direction of the tread portion inward in the tire radial direction by a distance which is 23% of a tire cross-sectional height Ha,
• a second land ratio of the shoulder region is larger than a third land ratio of the crown region and the first land ratio of the buttress portion,
• in a ground-contact surface in a standardized load-applied state where the tire is fitted on a standardized rim with a standardized internal pressure and is brought into contact with a flat surface at a camber angle of 0° with 80% of a load represented by a load index being applied to the tire, and
• a ratio (F/E) of a ground-contact length F in a tire circumferential direction at a second position separated from the tire equator outward in the tire axial direction by 80% of a length in the tire axial direction between the first tread ground-contact end and the tire equator, to a ground-contact length E in the tire circumferential direction on the tire equator, is 0.7 to 0.9.