I went riding at Winrock park last weekend, a park with 20,000 acres of trails with my sportsman 800. As you know the 800s get terrible gas mileage out of their small gas tank. I was afraid all weekend of venturing off too far from camp and running out of gas. Before I go back to this park, I would like to mount a reserve gastank on one of the racks, has anyone else done this? Is there a brand or style that works better than others?