Harley-Davidson might have a drastically different interpretation of a "sport bike" as the rest of the motorcycling community, but that doesn't seem to phase loyalists of the brand. With an engine that features architecture more in line with the competition (liquid cooled, over-head cams) the Sportster has enough power to put a smile on the rider's face and a low center of gravity to reward agressive riders more so than the traditional cruiser.