mmmm...Like some have already mentioned, its puzzling to compare a brand against a company.
So instead of yamaha, I would rather pit the FZ series and R15 against Pulsar (R1 is out of question

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But in view, there are certain brands that captured the "youthful" image at certain perion of time. The RX and RD, then came the CBZ, thereafter the Pulsar. Now it seem FZ/R15 has captured the image of youthful. This may not only be a perspective from the young male crowd. But take for instance, when I decided to buy a bike, I was considering the FZ. My wife thought I was too old for that

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I believe, capturing a youthful heart is different from what one may actually buy as there are several factors that may influence the final decision. Good looks and stylish and powerful bike may not necessarily translate to youthful image (I don't regard R1 as youthful as R15). Also, unfortunately/fortunately for pulsar, its so common not only to youth, but also for the milkman, commuters, policeman etc. that its youthful image has somewhat diminished. This is not the case for FZ/R15.....yet. And from my perspective and on behalf of my wife I voted "Yamaha?".
With more brands on the way, the youthful image may yet become harder to define, well thats good news

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