Every day, sometimes or just now and then? Heavy or light gear? We have a roof rack for all purposes. Strong and durable bars, letting you transport everything you need and in style. The new SmartSlide is a molded measurement system providing a quick, no-hassle, tape measure-free foot installation. SmartSlide also covers the underbar slot to improve aerodynamics and noise diffusion. The new SwingBlade end cap pivots open to allow full access to the t-slot for easy accessory installs. NOTE: The following products are not compatible with the AeroBlade: 503 Load Stops, 516 Prologue, 579XT Canoe Carrier, 558P Tandem Carrier, 597XT Hullavator, 847 Outrigger II, 870XT-873XT Fairings, 884 Roll Model