bicycle handlebar types
Drop (ergo or anatomic) handlebars. Porteur type bicycle handlebar, from an Italian Bianchi bicycle, circa 1940. Bicycle handlebar or bicycle handlebars refers to the steering mechanism for bicycles; the equivalent of a steering wheel.
Flat bars. The simplest kind of handlebar, these are a straight bar with grips on the end. Flat bars were traditionally only used by cross-country riders but now you see them in more general application. Flat bars offer more space to mount lights and computers than drop bars.