I had one for my race bike. Worked pretty good, even on a FWD minivan - Just had to load the van heavy in the front to prevent wheelies. The rack itself is solid steel and weighs probably 100lbs itself. I did some drilling on the trough bit and kept the ramp part in the van to help out a bit. Honestly, for the Ninja, I'd get one of the aluminum ones made for dirt bikes. It'll work just fine and handle a lot better along with being easier to install/remove.
