A mounting assembly for converting a two wheel vehicle to a three wheel vehicle. The mounting assembly includes a swing arm assembly having two arms connected by an intermediate member with each of the arms having a pivotal connector attached to one of their ends. A third link has a first end pivotally connected to the intermediate member and a second end free of the swing arm assembly. The mounting assembly may be adapted to fit the frames of Harley Davidson V-Rod model motorcycles by using arm extensions that connect the swing arm shaft assembly to the frame of the motorcycle.