Senior Airman Bernard Pecoraro, 436th Security Forces Squadron response force leader, right, lines his mountain bike up next to a sidewalk March 19, 2015, at Dover Air Force Base, Del. Pecoraro and other bike patrol members practiced riding techniques for properly ascending from and descending to street level from and to curbs; day and night riding; negotiating stairways; and bicycle mounting and dismounting techniques. (U.S. Air Force photo/Roland Balik)