Kamis, 17 Desember 2009

2010 yamaha wr 450 F - the motocross world upside down


2010 yamaha wr 450 F, 2010 yamaha wr 450, 2010 yamaha motorcycle,


2010 yamaha wr 450 F, 2010 yamaha wr 450, 2010 yamaha motorcycle,

2010 yamaha wr 450 F, 2010 yamaha wr 450, 2010 yamaha motorcycle,


2010 yamaha wr 450 F -
the motocross world upside down



In a bold move, Yamaha engineers have built a new motor that has its intake at the front and its exhaust exiting out the rear, similar to the unique-but-ill-fated Cannondale from a few years ago that is now sold in upgraded form as an ATK.

The new YZ-F not only has its exhaust port facing the rear of the bike, the engine itself is rearward-slanted so its weight is placed near the center of the bike. Yamaha says this design makes the big YZ feel more agile than other 450s, even approaching that of a 250cc 2-stroke machine. “It’s the most nimble handling 450 ever,” said Tim Olson, media relations manager for Yamaha’s off-road division, at the YZ’s unveiling.

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