To effectively reduce or eliminate used amount of balance weight made of lead for correcting weight unbalance of wheels.

Balance correction of a single wheel is made by executing in turn a process of measuring static weight unbalance of a single tire T and finding a balance weight corresponding to an unbalance weight at a light point position K of the tire T, a process of buffing the light position K of the tire inside surface and around it in a state of expanding the opening Ta of the tire T, a process of applying thermosetting resin B mixed with powder of metal other than lead of weight corresponding to the balance weight on the light position K of the tire inner surface, and a process of thermosetting the thermosetting resin B and fixing on the tire T inner surface.