The single speed or fixed gear bike is certainly North America's contribution to the city bike. First developed by bike messengers, the single-speed started as a racing bike stripped down to one gear. Why? Because a racing bike is built for speed; it's geometry features a short wheelbase that cuts tight around corners and steep seat and head angles that optimize handling and power to the pedal. But, a racing bike has gears and, in a world of stoplight-to-stoplight movement, gears often give you more trouble than their worth. Today the single-speed bike has turned into a cultural phenomena and no company has embodied this quite like Pure Fix who build a high-quality, fashion-forward bike beloved by messengers and anyone who wants a high-performance, simple bike for the city.