This footage came from a couple on their bike after they stopped at a light when they were approached by a man who was yelling at them. When the guy walks up on them the driver asks if something's wrong when the man just starts swinging! The motorcyclists absolutely know how to handle themselves in the face of an assailant! They subdue the man and keep him pinned to the ground while others rush in to help call the police.
It's later determined that the man was clearly under the influence of some drug or alcohol and the legal process against him continues but lets definitely give a hand to the guy who made certain that he subdued his attacker and waited for the proper authorities to arrive!