I think this was a martial arts movie, possibly like American Ninja, that genre. The scene I remember is where a group of ninjas on motorcycles, all wearing black, possibly wearing black ski masks, attempt to commit a crime, a robbery or an assassination. When they fail their mission, we find out that the ninja leading the mission was an asian female when she removes her mask. The crime boss punishes her for failure by strangling her with a black scarf. Anyone remember this movie? Thanks!