This whole thing is already pretty ridiculous, but some have become even wackier over the years as owners have transplanted other engines into them. We've seen one that had a 650 cc parallel-twin out ...

If you are looking for something a little different for your daily commute, then how about this twin pulse jet engine Harley Davidson motorcycle which has appeared on eBay. This crazy Harley Davidson ...

If hopping on a motorcycle isn’t thrilling or deadly enough for you anymore, you may want to point your browser toward eBay Motors. The world’s first and only twin-pulse-jet-engine motorcycle is ...

Is it a bird, is it a plane? Is it a car, is it a motorcycle? The Pulse autocycle is all that, minus the “bird” part – with an extra helping of awesomeness and exclusivity. And there’s one you can buy ...

Bob Maddox’s stage name, Crazy Rocketman, is a misnomer. Maddox doesn’t build rockets. He builds pulse-jet engines. There’s a difference. As for the crazy part—that may be true. Maddox is the world’s ...