The Fists of Righteous Harmony.

A group of centuries-old crime fighters known as the FISTS become modern day motorcycle riding superheroes by using spectecular ninja techniques to battle the forces of evil. The Dark Monk (their arch nemesis) has resurfaced from the criminal underground to wreak havoc on the lives of the innocent and eliminate the Fists beginning with Syko, whose psychic abilities enable the Fists to see crime before it happens. The Police are distrustful of the ways of the Fists and vow to stop them, suspecting that they are not gud, but instead evil masked assassins, With a corrupt police force in league with the drone-like Gang of the Black Mask, and the Dark Monk bent on destroying them, can the Fists possibly survive long enough to save the world?