FIG. 1 is a perspective view of a preferred embodiment of a rear steering tricycle; FIG. 2 is a left side elevational view thereof; FIG. 3 is a right side elevational view thereof; FIG. 4 is a top plan view thereof; FIG. 5 is a bottom plan view thereof; FIG. 6 is a front elevational view thereof; and, FIG. 7 is a rear elevational view thereof. Phantom lining, where utilized, is for illustrative purposes only and forms no part of the claimed design.