Abstract: A conversion assembly for converting an in-line roller skate to an ice skate for use on ice. The roller skate is of a type having a boot with a sole and a frame structure mounted thereto. The frame structure includes two longitudinally extending, spaced apart parallel support members provided with at least three sets of transversely aligned bores longitudinally spaced apart thereon. At least three wheels are disposed longitudinally between the support members and rotatably mounted thereto by fasteners which include a fastening element for extending through each wheel and related set of aligned bores in the support members. The conversion assembly comprises a thin longitudinally extending skating blade having a sharp bottom edge adapted to engage the ice and at least three upstanding tab portions longitudinally spaced apart along the top thereof.