The invention is a replaceable golf shoe cleat or spike 10 for use in place of a standard metal spike 4. Winter golf shoe spike 10 preferably has a main cleat body 11 molded from a durable plastic type material in single unitary fashion. A threaded stud 13 is formed on the upper surface of generally concavo-convex flange 12 and protrudes axially therefrom. A plurality of traction ribs 15 are formed on the bottom traction surface of concavo-convex flange 12. While the ribs 15 may be present in a variety of configurations, they are preferably triangular ridges arranged in a radial fashion emanating from the center of concavo-convex flange 12.