Endurance Book Video caption: Discover our second-ever book from GCN: Endurance: How To Ride Further. Following on the heels of our first book, The Plant-Based Cyclist, we wanted to move from diet to doing. Written by Mark Beaumont together with his record-breaking around-the-world ride performance manager and highly respected elite sports physiotherapist, Laura Penhaul, this guide will help you turn a 20-miler into a century, a century into a coast to coast, and a continental crossing into a ci