Warlocks
Hells Angels are not necessarily the most violent of all the biker gangs. The Warlocks have such a nasty reputation that many of their fellow clubs won't even recognize them. The gang has a history of brutal violence and drug trafficking.
The Highwaymen
The Highwaymen would be no match for Hells Angels or the Outlaws, capping at around 200 members. However, their history is a bloody one. The Highwaymen have brought plenty of crime to Motor City, including murder and cocaine trafficking.