sentences:  Improvised bullhorn bars may be constructed simply by cutting the drops off drop bars and then mounting them upside down so that the remaining start of the drop provides a slight upward hook for resting the hands, although this does not provide as much forward extension (reach) or lowering (if desired, normally for time-trial based use) as purpose made bullhorns.These are sometimes called "Flopped and Chopped" or "Flipped and Clipped" bars, and if this is to be done, care should be taken to properly remove the sharp edges from the cuts, and to properly tape and plug the bar ends for safety purposes.The bullmoose style was common on early mountain bikes.