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
Citi Bike Union of America Local 100 in July 2015. The company had about 200 employees joining the union at the time. On September 17, in the face of overwhelming support for unionization, Citi Bike agreed to recognize TWU Local 100's representation of Citi Bike's labor force. On October 28, 2014, Alta Bicycle Share and NYCDOT announced a plan to improve and expand the Citi Bike program. Bikeshare Holdings LLC, a new entity formed by the partners at real estate developer Related Companies and gym chain Equinox Fitness, acquired Alta Bicycle Share—renamed Motivate—and named Jay Walder as the new chief executive. (Motivate