Jan 22, 2008 · The Mongols. The Mongols are an outlaw motorcycle gang spawned in California. Their colors are black and white, and their three-piece patch features a Genghis Khan-type Mongol warrior riding a Harley-Davidson motorcycle in the center. The top rocker reads "Mongols," but it is the third piece, the bottom rocker, that first caused the gang a problem.. The most common ranks are Founder, President, Vice-President, Secretary, Treasurer, Road Captain, SGT at Arms, Member and Prospect. Clubs may also have a Tail-Gunner, enforcer and a chaplain. Patches are used to identify rank and position within the club. There are differences in ranks and titles between the separate motorcycle clubs, even.