Drag Specialties 3 Gallon Legacy Gas Fuel Tank 07-17 Harley Davidson Sportster. DRAG SPECIALTIES LEGACY GAS TANK. Precision-made tanks are TIG-welded construction using deep-drawn steel. Unique, functional styling gives the bike a great custom look. All styles hold approximately 3 gallons and are pressure-tested.The item "Drag Specialties 3 Gallon Legacy Gas Fuel Tank 07-17 Harley Davidson Sportster" is in sale since Wednesday, August 12, 2015. This item is in the category "eBay Motors\Parts & Accessories\Motorcycle Parts\Body & Frame\Gas Tanks". The seller is "jtscycleparts" and is located in Cobleskill, New York. This item can be shipped worldwide.