The bike that started the four-stroke revolution keeps moving forward with chassis and engine refinements that ensure the five-titanium-valved YZ450F remains at the head of the open-class pack. The ...

Yamaha, the Japanese motorcycle manufacturer, introduced the original YZ motocross bikes in the 1970s. The line was expanded, altered, and revised substantially over the years. The YZ 85 was ...

I’ve been passionate about motorcycles ever since I started riding dirt bikes in childhood and now I’m doing my best in blending mechanical engineering with motorcycle journalism. New year’s YZ450F ...