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The Yamaha TDM is an 849 cc dohc parallel-twin motorcycle that heralded the modern "Adventure Sports" category. The TDM was first manufactured by the Yamaha Motor Company of Japan in 1991. The TDM has a pressed-steel frame and a dry sump engine with five valves per cylinder, (three inlet and two exhaust). The engine has a maximum output of 63.4 kW (86PS) at 7,500 rpm and 88.8 Nm (9.1 kg-m) of torque at 6,000 rpm.〔http://www.topspeed.com/motorcycles/motorcycle-reviews/yamaha/2013-yamaha-tdm900-ar153031.html〕 ==History== The TDM was arguably the first road-oriented "Adventure Sports" motorcycle. It was not intended as an off-road machine, but as a comfortable yet manoeuvrable all-rounder, rather like the Ducati Multistrada of later years. A TDM is too bulky and heavy for serious off-road work, but its long-travel suspension can cope with gravel tracks. The TDM's engine was derived from the Paris Dakar winning Yamaha XTZ 750 Super Tenere. Yamaha intended to create a motorcycle capable of handling European mountain roads and coping with rougher road surfaces. The TDM's upright riding position seemed radical in its day. The TDM was imported into the United States for only two years, 1992 and 1993. It was never a big seller in the United Kingdom nor at first in The Netherlands, but sales were strong in other European countries, particularly in France, Germany and Greece.. In 1996 Yamaha released the Mk2 TDM with updated bodywork and a 270° firing order instead of the previous 360°. This modified engine was first seen in 1995, when Yamaha introduced its TRX850 in Japan. The 270° engine gave the TDM an attractive new character, not unlike a V-twin. The 270° TDM went on to become one of the top 15 best-selling bikes in the Netherlands. 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「Yamaha TDM850」の詳細全文を読む スポンサード リンク
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