Used in good shape still The Polaris Radius Control Bar Bundle is a set of steering and suspension components designed for ATVs, side-by-sides, and UTVs. Made by the brand Polaris, this bundle includes A-arms and swingarms that help control the radius and stability of the vehicle's steering system. These components are essential for maintaining smooth handling and control while navigating rough terrain or off-road conditions. The bundle is a high-quality upgrade for Polaris vehicles looking to enhance their performance and durability.