The Diamondback 510 Recumbent bike is a step up from the Schwinn product we carry. Most noticeable is the 510 offers a mesh back pad that helps with comfort and cooling. The frame is actually a little longer and a bit more robust to help with stability. The seat slide travels on a chrome rail as opposed to a painted rail. The Diamondback 510 also offers a nicer, wider pedal that allows the user to more easily get their foot in and provides more surface area while pushing. The warranty on parts is 3 years vs the Schwinn being 1 year. The transport wheel is an exposed nylon wheel making it much easier to move within a room. Lastly, the ergonomics of the bike are nice in which the console is a little more distant from the user providing a more open feel.