A retreaded tire manufacturing method, which avoids forming the buffed surface always in the same position by buffing in tire retreading and the resulting drop in delamination resistance of new tread rubber, and tires suitably retreaded by this manufacturing method are provided. In this method, the tread rubber of a tire is abraded away circumferentially to form a tread application surface of the tire to which new tread rubber is applied. And the position where the tread application surface is formed is radially changed as the repeat count of retreading rises.