Hells Angels vs. The Rock Machine
The Rock Machine, like HAMC, is an international motorcycle club, albeit a much smaller one than Hells Angels. The Rock Machine were known rivals of the Hells Angels from 1986 to 2002. The Quebec Biker War waged on between both groups for years after The Rock Machine's leader got locked up. Dozens of people died in ambushes and turf wars, and it all came to a close at the turn of the century.
Celebrity Bonds
Hells Angels have a ton of connections to the celebrity world. They have been associated in the past with acts like the Grateful Dead, Allen Ginsberg, and Ken Kesey. HAMC is even known to have ties to bands like The Beatles and The Rolling Stones.