Raw steel. This is the original Sportster Iron Guerilla fuel tank that won Winston his first bike building Word Championship. A slim design that resembles a classic Sportster tank but that transformed with Winston's artistic creativity to something way more. This tank will complement a bone stock Sportster but will also shine as the centerpiece on a wild custom, not many can do that. Compatible with all OEM & OEM style fuel pump components and screw-in gas caps. Dimensions approx.: 22.8cm overall width x 49.2cm overall length tank body (excl. the brackets). Capacity approx. 9 liter (2.4 gallon).