Bicycle handlebar a steep U-shape from the base, so that the rider's hands rest above waist-level. This style of bicycle handlebar became very popular in the 1960s after the introduction of wheelie bikes such as the Schwinn "Sting-Ray", Raleigh Chopper, and other highly stylized youth bicycles that imitated the appearance of drag-racing or chopper motorcycles of the day. Legislation in the United States introduced during the 1970s limited the maximum height of manufacturer-installed handlebars to 16 inches above the lowest seat setting; European Union safety regulations use a similar limit of 400mm. The apehanger style remained common in the US through the
Chopper bicycle Chopper bicycle A chopper bicycle is a highly customized bicycle whose design, construction and style is similar to that of a chopper-style motorcycle. While the term "chopper" is generally used to describe a motorcycle or bicycle that has had some of its original parts replaced with custom parts, today's definition has grown to include custom motorcycles and bicycles that are low to the ground, usually with extended forks creating a long front end. Even as commercial interests are taking note of the popularity of choppers and expanding their lines, most riders of choppers have hand built choppers and encourage others