That may come as a surprise to some, if only because Yamaha didn't actually make its first proper dirt bike until the late ...

We’ve got detailed rundowns of the latest dirt bike models, ranging from classics like the Honda CRF450R and Yamaha YZ125 to new ... youth-specific bikes on our Kids Bikes page.

Yamaha points to "the push for more environmentally friendly machines" as the impetus for 4-stroke dirt bikes -- which sounds ...