Abstract: A riding sulky attachment for use with a conventional self-propelled vehicle, the vehicle including a body with front and rear wheels, a self-propelling drive mechanism and a steering assembly including a pair of operating handles extending upwardly and rearwardly from the vehicle body. The riding sulky attachment includes an elongate frame constructed of a first member, a second elevated and parallel extending member and a third angularly disposed and interconnecting member. A forward end of the elongate frame is releasably secured to a rear of the vehicle in a pivotal manner about a first horizontal axis. A carriage assembly supporting a single wheel extends downwardly from a rear end of the elongate frame and is rotatably secured to the elongate frame about a second vertical axis. An elongate cantilever member is secured to an intermediate location along the elongate frame and extends upwardly and in angular fashion relative to the elongate frame.