The Hobos are a loose-knit gang of thieves and vagabonds. They travel primarily by train and can sometimes be found setting up camp in forgotten freight cars. Their primary gang territory is along Dustbin Road where they gather to trade weapons, supplies and stories.
While their name is written as "HOBOS" on the sign "BEWARE THE HOBOS" in Dustbin Road, it is written as "Hobo Clowns" in the description of the challenge in Southwind Express. This suggests that their full name is "Hobo Clowns".