Derailleur gears battery pack and to a small electric motor that drives the derailleur. Although expensive, an electronic system could save a racing cyclist time when changing gears. Derailleur gears Derailleur gears are a variable-ratio transmission system commonly used on bicycles, consisting of a chain, multiple sprockets of different sizes, and a mechanism to move the chain from one sprocket to another. Although referred to as "gears" in the bike world, these bicycle "gears" are technically "sprockets" since they drive or are driven by a chain, and are not driven by one another. Modern front and rear derailleurs typically consist of a
Influence of French on English states like New-Brunswick, Quebec, Ivory Coast, Benin, Togo, Guinea, Cameroon, Congo, Democratic Republic of the Congo, Madagascar, Mauritius, Tchad, Djibouti, Senegal, Morocco, Algeria, Tunisia, Lebanon, France, Belgium, Switzerland, Luxembourg, Monaco, Aosta Valley, French Polynesia, New Caledonia, and Vanuatu adopting it as their official language. This geographical diversity has led to many different contacts with vernacular dialects, regional and international languages, from which French has often been enriched locally. In a number of countries and regions where French shares co-officiality with English (Cameroon, Canada, Jersey, Mauritius, Rwanda, Vanuatu), particular lexical regionalisms are observed where French and English terms are used interchangeably.