For our test of the 2010 Yamaha YFZ450X we traveled to South Carolina, home of the Big Buck GNCC. Riding on the actual race course used earlier gave us the ultimate chance to put the YFZ450X through its paces.

In part one of our test, Yamaha provides an in-depth look at the features and benefits of the YFZ450X and gives us an overview of the number of fully integrated GYTR performance parts Yamaha developed for the machine