Abstract: A conversion kit for converting a two-wheel conveyance, such as a bicycle, into a three-wheel conveyance includes a connecting member which provides two wheel fork assemblies equally spaced on opposite sides of the plane of the rear wheel, a center steering member having two arms arranged in a "V" shape and being attached to the center post of the bicycle and supporting the handlebars, and two four-bar linkage arrangements each including an arm, a rod member and a link member, one such four-bar linkage being coupled to each wheel fork assembly. The two linkages couple turning movement of the handlebars into turning movement of the front steering wheels wherein the front steering wheel to the inside of the turning path of the conveyance is turned through a greater angle than the front steering wheel to the outside of the turning path for the same amount of turning movement of the center steering member.