Book excerpt: Modern all-road bikes combine attributes that were considered mutually exclusive just afew years ago: comfort and performance. Speed on smooth pavement and on roughgravel roads. A lively feel and the ability to carry a camping load. Handling that is bothstable when the rider is tired and responsive on twisty mountain descents. All-road bikes combine the best aspects of racing, touring and even mountain bikes in just one bicycle.In this book, you'll find out how all-road bikes work and what is important when choosing one. A must-read for cyclists interested in the technology of their bikes, and for every cyclist contemplating his or her next bike purchase.