The white tube is my fishing pole holder when I'm fishing an area. (If you didn't pick up on that from the other pic) Otherwise the two fly rods are stored in tubes on the other side of the bike. I've been riding, camping and fishing like this on two wheels since 1988, before then on a bicycle. Favorite places to ride and fish. Adirondack Mts. NC/TN/GA Appalachian Mts. Yaak River, MT. Northeast Washington State. Colorado, and the Black Hills of South Dakota.