Campagnolo Front Derailleur
A campagnolo front derailleur is a system that allows movement of a bicycle chain to change its development by scaling or multiplication. It is generally controlled by cable. The campagnolo front derailleur also includes a chain tensioner, the task of adapting its length to the diameter of the gear selected. The front derailleur is in charge to change the channel board to select the gear the better. The number of speeds a bicycle is the product of the number of plates by the number of crank gear rear hub. For example, a bike and 3plateaux 7pignons will 21vitesses. For such a number, it is in fact theoretical speeds, because it is cheaper to avoid crossing the line, that is to say, the twist between a left gear and a right tray and vice versa . In practice, the bike that will 12vitesses advantageously used. The rear campagnolo front derailleur when changing gears, moves the chain on the gear selected. While most derailleurs still offer the option to change mode speed friction derailleurs indexed or automatic control are standard. The shifters are easy to use, but must be set very precisely: the race side of the range of the campagnolo front derailleur should be limited so that the chain does not jump. In 1895, Jean Loubeyre developed the "Polycelere," the first real derailleur, which has been included in the catalog of the Compagnie Generale des cycles. In 1912, when the Tour de France, crossed the Alpine passes for the first time, a runner, Etienne Joanny Panel, experimented on his bike "The Vagabond" a change of speed derailleur. But he was later banned by Henri Desgrange, organizer of the Tour. In 1937, the use of the campagnolo front derailleur was authorized for the Tour de France. The only model was then approved the "Super Champion" of the former cyclist Oscar Egg. In 1964, Japanese Nobuo Ozaki, head of product development at Maeda (Suntour), invented the campagnolo front derailleur parallelogram leaning (its patent expired in 1984) [3]. Since 1985, Shimano's integrated broadcast widely. The 1990s saw the disappearance of many local manufacturers: Favorit, Fichtel & Sachs, Galli, Gipiemme, Simplex, Sturmey-Archer, Huret, Mavic, Zeus . . . [4]. The market is currently dominated by Shimano, Campagnolo and SRAM. Copyright Text is available under Creative Commons attribution share alike, other conditions may apply. See Terms of Use for more details and credits graphics. If reused texts of this page, see how to cite authors and include the license. Wikipedia ® is a registered trademark of the Wikimedia Foundation, Inc. . Charitable organization governed by section 501 (c) (3) of the Tax Code of the United States. . . .
