books.google.com - Gear and maintenance for mountain and hybrid bikes Advice from health and fitness experts on how to train and avoid injury This book is for cyclists of all ages who enjoy getting off the beaten path. It covers both the mountain bike and the more inclusive realm of the hybrid bike, which has many of the...http://books.google.com/books/about/Backroad_and_Offroad_Biking.html?id=INNM7b2bQzkC&utm_source=gb-gplus-shareBackroad and Offroad Biking