A Chopper is a modified type of motorcycle that has no unnecessary items. Can be based on a production motorcycle or be created from scratch. With respect to the traditional motorcycle, the chopper usually lighter, have smaller fuel tanks, and their windshields, lights, fenders, seats are smaller or directly were removed. After the Second World War, some American bikers who had fought in Europe were unhappy with their country motorcycles (mostly Harley-Davidson and Indian), as the Europeans were lighter and fun to drive. To improve their skills, and in the absence of any motor kit enhancement, ex-soldiers chose to basics: Cut and remove ("to chop" or "to bob" in English) everything unnecessary to the proper functioning the bike to lose weight and gain speed. Thus was born the "Bobbers" naked bikes without windshields, backrests, auxiliary headlights, fenders, seats minimalist fender cut and often without front brake. The heavy and powerful Harleys and Indians soon became so light and fun on motorcycles, which came into use in races. Some Indians came to 200 km / h, which was a record for the period. (Burt Munro holds the record for less than 1,000 cc achieved in an Indian Scout from 1920 to 300 km / hour). At the end of the 60 are the "Choppers", which differ from the "Bobbers", basically by a pitch fork excessive. The high handlebars, called "Ape-hanger" (ape hangers) made its appearance. Kilometer consistent backups in a single steel bar attached to the rigid chassis were another feature of "Choppers" The front tire was made thinner and the widest rear adapting car tires. This made for a single bike style and adapted to each rider since each one decided just what needed to be done to create your desired bike, most of the time experimenting with colleagues in garages. Most "Bobbers" and "Choppers" the time had no battery, the lighting was done with a magnet, and the harley clutch was on foot, while the speeds are passed by hand. This system was called "Suicide Shift" or suicide clutch). Coupled with the lack of front brake, the driver was at least risky, but fun was essential. The business of construction and modification of Harleys appeared in the late 80's. Talented designers started building Choppers and his work became more sought after. An individual no longer needed to do the work yourself, just wanted to express what a designer and he did the rest. Arlen Ness was one of the earliest and most widely recognized and was joined by an entourage of companies that populate today's international scene processing and customization. Appearing regularly on television and being stars ultramediatizadas, we can find Jesse James and his company "West Coast Choppers" and the Teutul family with "Orange County Choppers". Today the idea of ??a "Chopper" has completely changed. The "do it yourself" has given way to thousands of companies offering parts and services for the owner to make the dream reality. Given the avalanche of enhancing engine kits (Harley Davidson motor preparation, or an auxiliary engine of the industry alike in form and function, but not in power, can reach up to 180 hp figures for displacements ranging up to 2500cc) and cut off parts to lighten the weight, and more an aesthetic than a useful standard to gain speed. . . .