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
Schwinn Bicycle Company accoutrements of motorcycles customized in the "bobber" or "chopper" style, including high-rise, "ape-hanger" handlebars and low-rider "banana seats". Inspired, he designed a mass-production bike for the youth market known as "Project J-38". The result, a wheelie bike, was introduced to the public as the Schwinn "Sting-Ray" in June 1963. It had ape-hanger handlebars, Persons's Solo Polo Seat banana seat and 20-inch tires. Sales were initially slow, as many parents desiring a bicycle for their children did not find the Sting-Ray appealing in the least. However, after a few appeared on America's streets and neighborhoods, many young riders would accept nothing