MULTI-WHEEL TRANSPORTATION VEHICLES AND RELATED METHODS

Transportation vehicles, suspension systems and related methods are provided herein. For example, a three wheeled vehicle is provided that can include a frame having a first side and second side and a front end and a rear end and a steerable front wheel secured to the front end of the frame. The vehicle can also include a first trailing wheel arm having a first rear wheel secure thereto and a second trailing wheel arm having a second rear wheel secure thereto. The vehicle can also include a central suspension joint secured to the frame on which the first trailing wheel arm is rotatably secured and the second trailing wheel arm is rotatably secured on either side of the frame. Further, the vehicle can include a horizontal linkage having a first end and a second end and a midsection between the first and second ends. The horizontal linkage can be pivotably connected to a pintle on the frame at the midsection beneath the first and second trailing wheel arms with the horizontal linkage linked to an underside of the first trailing wheel arm between the first wheel and the central suspension joint proximal to the first end of the horizontal linkage and linked to an underside of the second trailing wheel arm between the second wheel and the central suspension joint proximal to the second end of the horizontal linkage.