Though a beautiful machine, the 1915 Iver Johnson motorcycle lacked horsepower. The motorcycle used a V-twin that displaced 1020 cc, which was far less than the other V-twins of the era. Find more information and view pictures of the 1915 Iver Johnson.
Movies like "Easy Rider" brought the chopper to the public's attention, and chopper culture is still going strong. Even Paris Hilton has one, which reportedly costs $250,000. Go into the guts of these chopped-up motorcycles and see how they're customized.