It's All About the Bike: The Pursuit of Happiness on Two Wheels Penn’s journey, but this book is more than the story of his hunt for two-wheeled perfection. En route, Penn brilliantly explores the culture, science, and history of the bicycle. From the United Kingdom to California, via Portland, Milan, and points in between, his trek follows the serpentine path of our love affair with cycling. On the way to building the perfect bike, Robert Penn brilliantly explains why we ride.