Abstract: A rotary power source and a continuously variable transmission are coupled together. The continuously variable transmission includes a first shaft, a first pulley coupled to rotate with the first shaft, a second shaft, a second pulley coupled to rotate with the second shaft, and an endless power transfer loop coupled about the first pulley and second pulley. The first pulley is of a variable diameter type to adjust turning ratio relative to the second pulley. This first pulley includes a pulley cage including a number of bars radially spaced apart from one another about the first shaft that are each inclined relative to a rotational axis of the first shaft and define a generally frustoconical shape. The first pulley also includes a disk defining a number of slots each receiving a corresponding one of the bars therethrough. A number of carriers are coupled to the disk to travel along a corresponding one of the slots and a corresponding one of the bars.