Any time a motorcycle company comes out with a three-wheeled vehicle, it's a bit of a surprise. Yamaha debuted the NIKEN at last year's EICMA show in Milan and did just that. Even among three-wheelers it's decidedly non-conventional, with four fork tubes connecting to two 15-inch wheels that pivot to lean through turns. The engine is the 847cc MT-09 triple that we've come to know and love, while much of the switchgear and electronics (like the cruise control) seem to be lifted from the MT-10—also the 190-section rear tire. The frame is a steel-tube unit, and different from any other bike in Yamaha's lineup, as you might expect.