08-14 POLARIS RANRZR800: Maier Rear Fenders - Polaris (STEALTH) Maier USA is America's most trusted name in powersports plastics. As the Powersport Industry's largest manufacturer of custom and O.E.M. replacement plastics in the United States, their name and their products have withstood the test of time. Since their inception, Maier has led the way in producing top-quality bodywork and accessories for powersports racers and enthusiasts across the globe. Proudly manufactured in the U.S.A.