Kraus Pro-Line Slider Derby Cover For Harley When your performance bagger has gone a little too deep into that left hand sweeper, the Pro-Line Slider derby cover can save your primary from disaster. Features: Comes with replaceable Delrin slider to protect your primary Stainless hardware included Made in the USA Kraus Motor Company's sleek, inventive custom bikes have always attracted attention. These designs are equally at home winning World Championship bike races or smashing land speed records. Kraus Motor Company has changed its concentration to the development and manufacture of cutting-edge performance suspension, braking, and ergonomic systems for Harley and Indian motorcycles. Every item they manufacture is clearly designed with utility and performance in mind.