An improved version of our Memphis Fats, the Drop-Top Memphis Fats features a built-in, height-adjustable Venturi Wing that smoothes the air flow and virtually eliminates buffeting. Using the Venturi effect, air is boosted up and over the rider, producing the benefits of a shield up to 3in. taller; adjusted to 16in. , you get the wind protection of 19in. and a clear view of the roadnever having to look through a windshield again!. Dynamic styling, available in Ghost (a light black tint with 85% visible light transmission) or Black Smoke with Polished or Night Shades (Black) stainless straps. Adjustable. Available in 3 height ranges: 13-16in. , 15-18in. , and 17-20in. Fits Standard headlight size (5-3/4in. - 7in. ) and 9in. Headlight cutouts. Fine tune final adjustment- 1-1/4in. toolless adjustment for perfect fit, or, drop-top around town. Revolutionary Concept: Using the venturi effect, the Drop-Top windshield is positioned well below the riders line of sight while pushing the airflow over the rider completely without buffeting. Engineered using CFD (Computational Fluid Dynamics) Software. Contoured concave Venturi Wing boosts the air flow up an additional 3in. , throughout the full range of adjustment. Made from Lucite for excellent optics and durability. Made in the u. s. a. - Made in Memphis!. Computational Fluid Dynamics (CFD) is specialized software used to evaluate air flow around 3-D shapes. Windshield designs developed using CFD may be analyzed with hundreds of variations before prototypes are tested in real-world riding conditions to validate the results.