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A belt-driven bicycle is a chainless bicycle that uses a toothed synchronous belt to transmit power from the pedals to the wheel. The belts are typically made by the same manufacturing companies that produce timing belts for automobiles, machinery, and other synchronous belt drive applications. The application of belt drives to bicycles is growing, especially in the commuter bicycle market, due to the low maintenance and lubrication-free benefits. Belt drives are also available for stationary and fitness bicycles.〔(【引用サイトリンク】 Freemotion Fitness Carbon Drive )〕 == Benefits == * Belts do not rust. * Lubrication is not required. * * Cleanliness due to lack of lubrication. * * Little to no maintenance. * Smoother operation. * Quieter than chain.〔(【引用サイトリンク】 Building a Better Belt )〕〔(【引用サイトリンク】 Stuff We Like: Gates Carbon Drive Systems )〕 * Longer life than metal bicycle chains.〔(【引用サイトリンク】 Gates Carbon Drive Systems )〕〔(【引用サイトリンク】 Cycle Drive Systems: FAQ )〕 * Some belt systems are lighter than conventional chain driven system.〔〔 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「Belt-driven bicycle」の詳細全文を読む スポンサード リンク
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