Ground cycles are similar to the motorcycles of modern-day Earth but use a parabattery-powered electric motor in place of an internal combustion engine. They are fast and very maneuverable. Just as modern motorcycles, many can carry a passenger right behind the driver. Most ground cycles are sold "stock", without extras; however, owners tend to customize them with custom paint jobs and aftermarket custom kits. See also: * Hovercycle (the hovercraft equivalent)