WF450F

Yamaha’s 450-class off-road motorcycle entry associated with this record first appears in the early 2000s, when Yamaha introduced its new four-stroke 450 motocross/enduro platform for the U.S. market. Yamaha’s own historical materials and parts references show the model in 2003, with updated annual versions carried through the 2004 and 2005 model years. In 2006, Yamaha moved the 450 platform forward again with a major redesign featuring a new lightweight aluminum frame and other performance-oriented changes, marking the next era of the family. In enthusiast circles, this bike is remembered as one of the key machines that helped establish Yamaha’s modern 450 four-stroke off-road identity, bridging the early carbureted years and the later, more advanced generation of the platform.