2012 Kawasaki KLR650, The Best-Selling Dual-Sport Goes the Distance Across sand, dirt, forests, and of course pavement, nothing else adapts like the KLR 650. Built for almost any terrain an adventurous rider could dream up, this dual-sport can go the distance with its rugged single-cylinder engine and incredible fuel efficiency. Effective wind protection and a 5.8 gallon fuel tank ensure incredible range between stops. Combine that with an aluminum rear cargo rack that accommodates saddlebags or a tailbag, and it's a winning combination so much so that the KLR has been the best-selling dual-sport seven years in a row.