Product Description Attributes Motorcycle Flush Pop-Up Gas Cap This is a cap with a reserve thread Comes with o-rings to prevent leaks Simply push the center area down and rotate 90 degrees to show or hide the inner cap Easy to install, simply replaces your existing cap Specifications: Color: Same as picture show Material: Billet Aluminum Flush Diameter: 2 5/16" Knurled Grip Diameter: 1 1/2" Condition: 100% Brand New, Aftermarket product Fitment: Fit For Harley Dyna Super Glide Sport FXDX 1999-2005(all models with single screw in oil cap) This is a cap with a reverse thread. Also fits some Ural models including Patrol and Troyka Package Includes: 1x Pop-Up Gas Cap Instructions not included