A three-wheel vehicle is provided, and includes a single upper frame element having left and right upper spars that each have a downward-extending portion. Left and right lower spars are connected to the upper spars. Left and right rear spars are connected to the left lower spar and the right lower spar, with a second end connected to a rear section of the single upper frame element. A rear suspension sub-frame is coupled to the rear spars, with a wheel rotatably coupled thereto, and a front suspension assembly is coupled to the upper spars, with a left and a right wheel rotatably coupled thereto. A seat is coupled to the rear suspension sub-frame, with the seat located so that when an operator is straddling the seat, a perineum of the operator is located below a plane defined by an upper-most point of each of the three wheels.