The authors are all passionate bikers who have been under the powerful twins' spell since childhood. DIRK MANGARTZ has worked for decades for German and international magazines and was the editor-in-chief of Custombike for more than a decade. He is the author and co-author of various motorcycle books, has a huge archive, and is actively involved in the development of motorcycle accessories, primarily for Harley-Davidson. SVEN WEDEMEYER moves on the boundary between photography and journalism. His pieces make the culture of mobility tangible as he documents stories and personalities in authentic photographs. This seasoned gearhead not only produces exciting work, he also brings his own custom bikes out on the road. PHILIPP WENTE, freelance photographer and editor at ramp, a magazine with a cult like following, was already zinging around his parents' yard on his racing-orange Puky push bike (with the cool pennant on the front fender!) while still in diapers. Now he has custom bikes to ride: a Ducati Pantah and a H-D Early Shovel FLH. Unfortunately, they don't have cool pennants, which he deeply regrets.