For 2009 the best-handling big-bore you can purchase corners even sweeter and looks much more radical. Motorbikes Motocross 7268 PSN. 2009 Yamaha YZ450F Once you hear this infant bark you'll wish to take it to the track! the HIGH-SPEED PURSUIT OF PERFECTION Last season the new 2008 YZ450F jumped right in by winning the AMA Motocross Championship then backed it up with the 2008 Supercross title. We decided to not repair exactly what wasn't broken however that does not mean we didn't make a few changes to our flagship YZ ...

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