Intermediate drive, that provides 35 gears on a pivoting rear swingarm. Observe the Pillar of Suspension. Nicely rough around the edges, as could be expected of a product in then- early stages of developement. The production Ostrad is much- cleaned up, save for the seat lacing, which, sadly, hasn't progressed much from the initial design. Such a seat may be adequate , it may be nicely lo-tech, but is it pretty enough to go with such an otherwise well- designed bike?