6. Aprilia RSV Mille (1998-2003)

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This one’s from the Troy Siahaan list, age 30, and so seldom seen it had fallen off my radar screen. He’s right, though. This bike, which announced Aprilia’s entry into the world of big four-strokes at the turn of the century, is a great, solid platform which offers booming performance from its 60-degree V-Twin. It’s the same type deal as the RC51, but with far fewer dealers and support. Not that you need it now that there’s an internet. The perceived exoticity of the brand drives down the price, but if you find a nice original one, it really shouldn’t. See also the original Tuono.