Vortex GC520K  V3 Black  Fuel Cap Coarse thread enables quick closure without cross-threading and large contoured finger tabs allow for easier opening compared to classic Vortex design Safety lock switch prevents accidental cap loosening due to vibration or contact and integrated dual check valve assembly eliminates fuel tank pressure issues Vent and chamber design helps stop leaks by containing any fuel that gets past the check valve Up to 55 percent lighter than stock keyed fuel tank caps Customize to match your bike with interchangeable colored safety lock switches