. Motorcycle clubs tend to only admit men. "The culture of OMGs is notoriously misogynistic," Quinn, Anand Bosmia, Todd Petersen, Christoph Griessenauer, and Shane Tubbs write in a 2014 article for the Western Journal of Emergency Medicine on how ER personnel should deal with bikers, "and women affiliated with these gangs are generally forced into prostitution or street-level drug trafficking." A number of clubs, including the Hells Angels and the Outlaw Motorcycle Club, restrict membership to white men.
The Bandidos are somewhat less exclusionary, though still mostly white. Skip Hollandsworth at Texas Monthly noted that "although the club was made up mostly of white males, [Bandidos founder Donald] Chambers welcomed Hispanics, and for a couple of years, there was one black man who rode with the club. His nickname was Spook." The major exception to this pattern of white dominance is the Mongols, a primarily Latino biker club centered in Los Angeles with a history of anti-black violence.
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There is also a long history of white nationalism in biking, both in explicitly white supremacist or neo-Nazi bike clubs and among members of more mainstream clubs. In 2008, for example, the Outlaws hosted a St. Patrick's Day event in Florida sponsored by the white supremacist groups Confederate Hammerskins and Blood & Honour America. Hells Angels members have, on at least some occasions, collaborated with the Aryan Brotherhood. It's not uncommon for biker gang members to have tattoos of the dual lightning bolt logo of the Nazi SS, but the Anti-Defamation League notes this is as often for shock value as for anything else.