The dry lake beds of Cedarville, California, are a place where physics and common sense go to die. It’s flat, desolate, and wide open—the perfect backdrop for Bob Maddox, a man who looks at bicycles ...

About two weeks ago, Robert Maddox, a.k.a. the Crazy Rocketman by his internet moniker, introduced us to his latest contraption: a twin jet engine trike that puts to shame most other three-wheelers ...