I don't consider Boss Hoss as a real motorcycle as far as comparison goes since the engine is an existing engine for other purposes rather than an engine desinged for a cycle,I would say the same for Lenos jet powered bikes and the Viper powered one and that ones even technically has 4 wheels to boot.

I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!