What are the key features of a fixie bike style and how does it differ from other types of bicycles?

A fixie bike, short for fixed-gear bike, is a type of bicycle that has a single gear and no freewheel mechanism. This means that the pedals are always in motion when the bike is moving. Key features of a fixie bike include simplicity, lightweight design, and direct connection between the rider and the bike. Fixie bikes are known for their minimalist style and are often customized by riders. In contrast, other types of bicycles, such as geared bikes, have multiple gears and a freewheel mechanism that allows the rider to coast without pedaling.