Donny is the Winner of the 2012 International Book Awards. Donny Petersen offers the real deal in performancing your Harley-Davidson Twin Cam. Graphics, picture

Donny Petersen feels honored to share the wealth of his motorcycle knowledge and technical expertise. He offers the real deal in understanding the Harley-Davids

In this second part of his fifth volume on Harley-Davidsons motorcycles, Donny Petersen, who studied privately with Harley-Davidson engineers, shares practical

Many people modify their Harley-Davidson engines--and find the results disappointing. What they might not know--and what this book teaches--is that emphasizing

DIVWhen it comes to collector motorcycles, none hold the allure of the classic Harley-Davidson Big Twins built from 1936 to 1964. But owning and maintaining the