A radio-controlled motorcycle is a rarity in modelling and, by its nature, the hardest of all controlled vehicles. A machine on two wheels has to keep its own balance, which means either gyroscopic stabilisation or outrigger wheels, and the controls are far more sensitive than on a car: throttle and steering interact, and a correction that would be harmless on four wheels puts a bike down. If what you want is a motorcycle to build or to display, the classic side of the hobby offers far more choice. A static machine gives back detail instead of motion: frame tubes, a built-up engine and spoked wheels laced one spoke at a time, in plastic motorcycle kits. The cars, tanks and boats that do run under control are gathered in RC models and chuck gliders.