Abstract: A trailer for transporting a cargo vehicle such as a motorcycle in tow behind a towing vehicle includes a perimeter frame with a frame perimeter structure having a towing vehicle connection mechanism, and including trailer supporting wheels, the plane of the frame perimeter structure being oriented substantially parallel with the ground when the vehicle connection mechanism is connected to the towing vehicle; a cargo vehicle support bed positioned substantially within the perimeter frame; and a line and pulley elevation mechanism for lowering the bed substantially perpendicular to the ground to load and unload the cargo vehicle and for elevating the bed substantially perpendicular to the ground for cargo vehicle transport, so that the plane of the bed always remains substantially parallel with the plane of the perimeter frame.