A fixed gear bicycle (also called a "fixie" or a "track bike") is a single-speed machine with a fixed drive train, meaning the pedals spin at the same rate as the rear wheel. It is impossible to coast on a fixed gear bike, leading to a different style of riding from traditional free wheel-equipped bikes. Riding a fixed gear bike develops leg strength, pedaling technique and overall riding efficiency as the rider pedals through all kinds of terrain.
