 In Quebec, the power of the Mafia was limited by the fact it was only open to those who were Sicilians or of Sicilian descent.In contrast, the bikers were, and remain, mostly French-Canadian.The Italo-Canadian Cazzetta was not a member of the Mafia, but he did have a close relationship with the Montreal Mafia, and as a result of his Mafia ties, the Hells Angels were unwilling to challenge the Rock Machine as long as he was leader.