Frank Ohle is an incredibly skilled DIYer who outfitted his motorcycle with a 150hp Rotec Radial R3600 engine. For those of you who know a lot about bikes, you're probably scratching your heads right about now. Don't start questioning your knowledge yet though, experienced hobbyists, because the Rotec Radial R3600 is a freakin' plane engine.
Say what? That's right. Over the course of 18 months, Ohle figured out all of the ridiculously improbable steps involved in this project — that includes fitting a custom chassis, painting, suspension and electronics — and ended up with an absolutely gorgeous, incredibly noisy nine-cylinder superbike.
It doesn't just look and sound awesome, though. This thing actually runs. See Ohle take his mutant Red Baron chopper for a spin in the video below. It's in German, but we're sure that you'll get the gist.