METHOD FOR MANUFACTURING NON-PNEUMATIC TIRE

A method for manufacturing a non-pneumatic tire that can suppress the separation of the ring member from the tread member is provided. The method for manufacturing a non-pneumatic tire according to this disclosure is a method for manufacturing a non-pneumatic tire that comprises: a ring member formed as a single piece, having an inner cylinder, an outer cylinder and a connecting member; and a tread member, including: inserting the tread member into a cavity, moving a movable-side die to close the cavity, and supplying molten resin to space on an inner side in the tire radial direction of the tread member and molding the ring member, and characterized in that an outer diameter of an outer circumferential surface (tread surface) of the tread member before molding the ring member is smaller than an inner diameter of an inner circumferential surface of the cavity that faces the outer circumferential surface.