翻訳と辞書 Words near each other ・ Retro Jams ・ Retro Productions ・ Retro Puppet Master ・ Retro Report ・ Retro Review ・ Retro Rewind ・ Retro screening ・ Retro Stefson ・ Retro Studios ・ Retro style ・ Retro Television Network ・ Retro VGS ・ Retro-active ・ Retro-bolting ・ Retro-Diels–Alder reaction ・ Retro-direct ・ Retro-engineering ・ Retro-Future Vagabond ・ Retro-juice productions ・ Retro-Pulp Tales ・ Retro-style automobile ・ Retro-Trader ・ Retro/Grade ・ Retroa ・ Retroactive ・ Retroactive (album) ・ Retroactive (film) ・ Retroactive Conn Smythe ・ Retroactive continuity ・ Retroactive data structures Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Retro-direct ： ウィキペディア英語版 Retro-direct Retro-direct is a gearing mechanism used on some bicycles in the early 20th century, which provides a second gear ratio when pedaled backwards. ==History== Retro-direct was developed by French inventor Paul de Martin de Viviés (1833–1911). An early two-chain version was patented by in 1869 by Barberon and Meunier. A single-chain version was patented in 1903 by the bicycle manufacturer Hirondelle.〔 Some hobbyists have converted modern bicycles to use retro-direct gearing. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Retro-direct」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.