People with back issues sometimes prefer ape hangers over handlebars that create a lower riding profile. Ape hangers encourage a more upright posture instead of creating the need to hunch over. On long rides, apehangers that fit your body type also decrease strain on the wrists, elbows, and shoulders.

Why are they called ape hanger handlebars?

"Ape-hangers" — found mainly on choppers, these are handlebars of such exaggerated height that the rider has to reach up to them, hence the name.

Why do bikers have a rope hanging from their handlebars?

Mostly a biker tradition, the 3-4 foot braided cord you see hanging from the ends of handlebars on some bikes is called a “get-back whip” or a “dog whip,” and is a tradition going back to the motorcycle gangs of the 1970s who used them ostensibly as a way to keep aggressive dogs at bay while riding at low speeds.