NON-PNEUMATIC TIRE

The present invention includes: an elastically deformable tire part () which includes an inner cylinder, an outer cylinder () configured to surround the inner cylinder from the outside in a tire radial direction, and a linking member () configured to link the inner cylinder to the outer cylinder () and a tread member () externally fitted onto the outer cylinder (), wherein an elastic modulus of a material forming the tread member () is smaller than an elastic modulus of a material forming a tire part (), an outer circumferential surface of the tread member () is formed in a curved shape in which the outer circumferential surface thereof protrudes outward in the tire radial direction when viewed in a vertical cross-sectional view in both a tire width direction and the tire radial direction, the outer cylinder () includes an outer circumferential section () positioned on a tire equatorial section, side sections () positioned on both sides in the tire width direction with respect to the outer circumferential section (), and a shoulder section () configured to connect the outer circumferential section () to the side sections (), the outer circumferential section () is formed in a straight line shape in which the outer circumferential section () extends in the tire width direction when viewed in the vertical cross-sectional view, and the shoulder section () gradually extends inward in the tire radial direction as it goes outward in the tire width direction.