Low-profile design gives a clean look that is flush when riding, rider simply twists the cap to pop-up for refueling. Includes CNC machined billet aluminum base and removable pop-up cap. Drastically easier to refuel the gas tank. Factory gas caps open from one side only, resulting in limited fill angles and having to adjust handlebars when refueling. Premium Viton® seals for long-term durability and resistance from high temperatures. Utilizes factory venting system, for factory function with a custom look.