Motorcycle Dual Sporting (Vol. 2) - Dual Sporters & Thumper Humpers (Single Cylinder Motorcycling)    by Robert H. Miller
Price: $6.99 USD. 30070 words. Published on June 22, 2010. .
Twenty-nine published magazine articles from the Backroad Bob's Motorcycle Adventures - Dual Sporters and Thumper Humpers CD. Nineteen stories compiled from fifteen years and 43,000 miles of dual sporting and ten articles that take a look at Thumper Humpers - the endearing term used to describe the individualists that tour on their single-cylinder four stroke motorcycles.