The objective of the present invention is to implement a wheel cap device including; a spindle (30) established in the centermost portion of a wire wheel cap (44) of a wire wheel; and a ornamental image (24) consisting of an aesthetic feature casted thereupon and mechanically joining with wire wheel cap (44) and encompassing a bearing assembly (32) and counterbalance (34); whereby upon wheel rotation to coordinately revolve spindle (30) fixed to wire wheel cap (44) ornamental image (24) will be situated vertically consistently relative to the rotation of the wire wheel and wire wheel cap (44) to thereby display ornamental image (24) plainly, and perceivably.