This unusual transmission can be built with one or two RC motors. LEGO RC motors have two outputs instead of one, with the outer output having 26 percent more torque and less speed than the inner output. This transmission is connected to both of the motor's output at the same time, allowing us to select from which one it is driven. This allows us to make use of the difference in the output is properties, even though the gear ratio of the transmission itself is 1:1 at both speeds.