|Motorists allow plenty of room when passing this cyclist|
Many cultures have practiced mounted archery throughout history. During Roman times, the Parthians were well know for their archery skill while on horseback. In Japan, it became part of samurai training. Although the bow and arrow have been mostly replaced by firearms for hunting and warfare, their are numerous folks who still practice this ancient craft. Not surprisingly, some have replaced the horse with a mountain bike, since horses are much more expensive to own (Check out this article: The Average Monthly Cost of Owning a Horse).
This video is one minute and ten seconds long and shows several different techniques: