Derailleur gears several standards in use, and in each the product of the derailleur's actuation ratio and the length of cable pulled must equal the pitch of the rear sprockets. The following standards exist. Some rear derailleurs, especially for mountain bikes, incorporate a clutch to keep the lower length of chain in sufficient tension to prevent the chain from striking the bottom of the chain stay, called "chain slap", and which can damage the chain stay. Clutches are also helpful in preventing the chain from derailing from the chain ring on systems without a front derailleur. The front derailleur only has to
French language in Canada "la maison à Jacques" for "Jacques's house". French is a language with a T–V distinction, where different pronouns are used for polite and familiar address. Quebecers use the familiar form more than other dialects. This use is often qualified as the imitation of the English-speaking use of "you", which is the only pronoun referring to the second person, but only in spoken language. The colonists living in what are now the provinces of New Brunswick and Nova Scotia were principally constituted of Bretons, Normans, Basques, and Portuguese. Conquered by the English, they suffered massive deportations to the United States and