randonneuring
n.— «Randonneuring is long-distance, unsupported endurance cycling, a sport which began in France and Italy. “Randonnee” is a French word for “ramble” or “tour.”» —“Old ‘iron butt’ wins U.S. endurance cycling award” by David Lennam Oak Bay News (Victoria, B.C.) Feb. 2, 2005. (source: Double-Tongued Dictionary)