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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Zenith Motorcycles ： ウィキペディア英語版 Zenith Motorcycles Zenith Motorcycles was a British motorcycle and automobile manufacturer established in Finsbury Park, London in 1904. Automobile manufacture only lasted from 1905–1906. The motorcycles used engines from various suppliers and featured the "Gradua" variable drive transmission, which competitors claimed was unfair and many clubs banned the Gradua Zeniths. Thus Zenith added the word "Barred" in their badge. The Gradua system was replaced by gearbox and chain in 1924. In the 1930s Zenith ceased production but 'Writers of Kennington' restarted at the Hampton Court factory in Surrey. The Second World War interrupted production again, and they finally closed in 1950. ==Motorcycle history== Zenith Motorcycles was established in Finsbury Park, London in 1904. Zenith motorcycles used engines from various suppliers, including Precision, Villiers and JAP.〔(【引用サイトリンク】title=Zenith Motorcycles )〕 Under chief engineer Frederic "Freddy" Barnes, Zenith developed the "Gradua" gear, a variable pulley which adjusted the length of the drive belt by sliding the rear wheel backwards or forwards in the slots. This gave Zenith a great advantage which competitors claimed was unfair and many clubs banned the Gradua Zeniths, who simply included the word "Barred" in their badge. The Gradua system was replaced by gearbox and chain in 1924. In the 1930s Zenith hit hard times and closed down production, but the name was bought by Writers of Kennington, who had been one of their main dealers, and production restarted at the Hampton Court factory in Surrey. The Second World War stopped production again, but they managed to stockpile enough 750 cc JAP engines to continue straight after the war. JAP had ceased production, however, therefore once the last engine had been used it was the end of the line for Zenith and they finally closed in 1950.〔''〕 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「Zenith Motorcycles」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.