The book's full of great poster graphics and stills as well as a few interesting quotes and film-facts. Sonny Barger said this about Jack Nicholson in Hells Angels on Wheels: "Jack just stole the movie. Even when he was a kid he was a good actor. People from other clubs working in the movie thought he was a Hells Angel from a different charter. The way he walked around and acted in a crowd... the people who didn't know him didn't know he was an actor – they thought he was a Hells Angel."
I am still waiting for the definitive biker's book on biker movies – detailing the bikes used, who built them and which club members played which parts – but I suppose too many of the original actors, bikers and film crew are no longer around to do the necessary research.
This is a good read though... and if you get it from the gents at Sideburn, your copy will even be signed by one of the authors.