PURPOSE: To regenerate a used tire economically by preventing the introduction of air between a tire and a treat to be added newly and strengthening adhesion by a method in which a rubber binder between a running tread and a tire is vulcanized and adhered to the tire.

CONSTITUTION: A running tread 1 to be formed to regenerate a used, abraded tire is formed as a closed ring, forms a profile tread on the outside of it by a plurality of tread protrusions 11, and has channels which cross each other on its inside and formed in the shape of a web. In a tire 2 to be fitted to a wheel 4, a rubber binder layer 3 is mounted on the abraded, roughened surface of the tire 2, Since the layer 3 is spread and formed in the tire 2, air pockets are avoided. In the running tread 1, a through opening 14 connected to the channels 12 of the inside surface is formed.