HW450F is a generic dirt bike. This casting was previously known as the Wastelander. The name switched to HW450F (the 450F in the name being a common model designation for dirt bikes, 450 cc and four stroke) in 2008 due to international copyright complications.
In 2010, the casting was changed: the handlebars are no longer part of the metal base, but are instead part of the front fender. The casting was retooled again in 2024, with the fairings now being made of plastic and the side elements of the casting are now part of the metal base.