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The Triumph Thunderbird is Triumph motorcycle made in Hinckley, England, and sold since June 2009. The name "Thunderbird" is revived from a previous Triumph three-cylinder 885 cc bike. The last iteration was the Thunderbird Sport last made in 2004. ==Design== The Thunderbird is a cruiser with a large 200/50 R17 rear tyre. Design was by Tim Prentice in California.〔 The DOHC eight-valve parallel-twin engine has two balance shafts and a 270° crank, which imitates the sound and feel of a V-twin. The engine was originally intended to be modular, namely "two-thirds of" a Triumph Rocket III engine; but after four years of development, the only parts in common are the valves. Power output is and torque is .〔 The engine has two spark plugs per cylinder, which gives better combustion, resulting in lower fuel consumption, cleaner exhaust emissions, and more power. Brakes are double front discs with four-piston callipers, with a single rear disc also with two-piston callipers (ABS as option).〔(【引用サイトリンク】title=Thunderbird 1600 )〕 Final drive is via a belt drive.〔(【引用サイトリンク】title=First pics: 2009 Triumph Thunderbird 1600 )〕 In 2011, the Thunderbird Storm variant model was released featuring the previously-optional engine fitted as standard, twin headlamps and with a number of black, rather than chrome parts 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「Triumph Thunderbird (2009)」の詳細全文を読む スポンサード リンク
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