Though it might look stupid weird, I'm guessing that via a propietary system of moving the cog further inboard or outboard, thereby being able to match the rear chainline, to practically any bb/crankset? Nifty.
Its just a shortened freehub system, the same as the chris king and hope single speed hubs. By moving spacers around, you dial in the chainline.
Its just a shortened freehub system, the same as the chris king and hope single speed hubs. By moving spacers around, you dial in the chainline.