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
Niner (bicycle company) compaction of carbon layers, resulting in increased wall thickness precision, reduced resin pooling, and increased strength. Niner recently collaborated with Push Industries, a Northern Colorado company specializing in bike suspension parts, to develop a customized shock specifically for the RIP 9 RDO. As of 2017, the range of complete bikes available from Niner includes full-suspension mountain bikes, hardtail mountain bikes, cyclocross bikes, and adventure-touring bikes (also called "gravel bikes"). The company also offers a selection of bike components, including frame parts, forks, wheels, handlebars, and seat posts. Niner (bicycle company) Niner is an American bicycle manufacturer headquartered in Fort Collins,