Zero Gravity Windscreens SR Series Windscreen 1988-2007 Kawasaki EX250F Ninja 250R Best optics of any windscreen on the market. All are fabricated using highly specialized &rsquo;blow molding&rsquo; techniques similar to those used to form aircraft canopies. The result is virtually distortion-free optics Made from the finest grade of 1/8 in. acrylic plastic. Each windscreen is stretched as it is formed, a process which results in superior strength and flexibility. This flexibility allows the windscreen to absorb road vibrations and resist cracking. Factory drilled holes and profiles that match your O.E.M fairing for a precision fit Used by the best Superbike, Grand Pix, Supersport and Endurance teams in America, Zero Gravity windscreens dominate road racing