Get your giant monowheel exercise on with the Stationary Epicycle. This giant one-wheel contraption uses an epicyclic transmissiona and magnetic resistance to give you a great workout (and it better give you one for $12,000). The “dual-satellite transmission translates a single pedal revolution into four flywheel rotations-thus a rider spinning at 100 rpms causes the flywheel to spin at 400 rpms”. I don’t know what that means exactly either but it does have a touchscreen display, adjustable handlebars and seat and it looks cool as all hell. But for real world usage, we’ll need to see how it looks pushed off to the corner of your room with a bunch of clothes hanging off it.
Epicycle Vintage Poster (artist: H. Gray Henri Boulanger) France c. 1900 (20x20 Spun Polyester Pillow, White Border)