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dérailleur gear

См. также в других словарях:

  • Gear inches — is a system that assigns numerical measurements to bicycle gear ratios, to indicate how low or high a gear is. With old fashioned penny farthing bicycles, the crankarms were directly attached to the large drive wheel. One turn of the pedals moved …   Wikipedia

  • derailleur — type of bicycle gear mechanism, 1930, from Fr. dérailleur (1927), from dérailler to go off the rails (see DERAIL (Cf. derail)) …   Etymology dictionary

  • derailleur — [də rāl′ər] n. [Fr dérailleur, derailer, with reference to the “derailing” of the chain from the sprocket] a gear shifting mechanism on a bicycle for controlling its speed by shifting the sprocket chain from one to another of a set of different… …   English World dictionary

  • Derailleur gears — Transmission types Manual Sequential manual Non synchronous Preselector Automatic Manumatic Semi automatic Electrohydraulic Dual …   Wikipedia

  • Gear — For the gear like device used to drive a roller chain, see Sprocket. This article is about mechanical gears. For other uses, see Gear (disambiguation). Two meshing gears transmitting rotational motion. Note that the smaller gear is rotating… …   Wikipedia

  • derailleur — A lever activated mechanism that pushes the chain off one sprocket of a bicycle and onto another, thus changing the gear ratio. See front derailleur and rear derailleur …   Dictionary of automotive terms

  • Gear case — A gear case, also known as a chain case, is an enclosure for the bicycle chain and sprocket assemblages commonly employed by utility bicycles. It serves to protect the chain from mud and dirt and tends to fully enclose the drive train. It may… …   Wikipedia

  • derailleur — /di ray leuhr/, n. a gear shifting mechanism on a bicycle that shifts the drive chain from one sprocket wheel to another. [1945 50; < F dérailleur lit., a device causing disengagement or derailing, equiv. to déraill(er) to DERAIL + eur EUR] * * * …   Universalium

  • derailleur — de•rail•leur [[t]dɪˈreɪ lər[/t]] n. trs spo a gear shifting mechanism on a bicycle that shifts the drive chain from one sprocket wheel to another • Etymology: 1945–50; < F dérailleur lit., a device causing disengagement or derailing …   From formal English to slang

  • derailleur — /diˈreɪlə/ (say dee rayluh) noun a gear mechanism on a pushbike which derails a chain from one sprocket and re rails it onto another, thus allowing a number of possible combinations of front and rear sprockets, all providing different gear ratios …  

  • derailleur — noun /dəˈreɪlɚ,dəˈreɪljə/ a) The mechanism on a bicycle used to move the chain from one sprocket (gear) to another. b) The entire gearset on a bicycle with such a mechanism …   Wiktionary

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