the most famous product that came from fat city cycles was without doubt the cult yo eddy. the yo as it is often referred to is one of the most iconic and collectable mountain bikes of the early 1990s. the famous team violet 1991 and 1992 versions with matching rigid "yo eddy" forks are often the most desirable and are often built with ringle, grafton, bullseye, syncros and rockshox parts. owning a yo is the pinnacle for most vintage mountain bike collectors and the value of these bikes in recent years has seen a significant rise.