Yamaha made much of their brand-new cantilever rear suspension - the first time on a four-stroke - never mind that Vincent HRD had used a very similar design starting way back in the 1930s. In fact, the TR1 could be said to be quite close in layout to the classic Stevenage twins. It shared a few characteristics, in that the barrels appeared loosely based on that of the SR500 single (They weren't; they were a new design which just looked similar), 'doubled up', just like the popular legend which has Phil Irving, Philip Vincent's friend and chief designer, accidentally overlaying two drawings of the 500cc single cylinder Comet engine to come up with the V-twin. It's debatable whether it actually happened that way, but it's a good story!
The TR1 also, unusually for a Japanese machine, had a vertically split crankcase, just like the old British bikes. There was virtually no frame in the conventional sense, the bike instead relying on a pressed steel spine, which bolted onto the top of the engine to support the headstock, shock and swinging arm.
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TR-1 kom 1981 men blev aldrig någon riktig storsäljare med japanska ögon mätt. Inte så konstigt, hojen var helt enkelt ful. Efterföljarna i Virago-serien gjorde däremot jättesuccé under många år.
Tekniskt hade den en hel del gemensamt med Vincent : bakfjädringen, den minimala ramen med motorn som bärande element, vertikalt delat vevhus och cylindrarna en vevlagerbredd förskjutna i sidled samt en slagvolym på strax under 1000 cc.
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The TR-1 appeared in 1981 but was not a winner in number of sold bikes. Not to wonder, the bike was simply a pretty ugly one!
Its followers in the Virago class on the other hand, were a success for many years.
Technically it did resemble the Vincent in many respects. The rear suspension, the minimalistic frame using the engine as a stressed member, and the off-set cylinder design together with an engine size of just under 1000cc.
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