This "top shelf" rack is the perfect match for the Outpost Rear World Touring Rack. The top rack is removable and allows you to go stealth, or keep it on for extra carrying flexibility. Universal Fit System This rack offers more fitment flexibility than other systems, to fit more bikes. That's less time wasted during installation futzing with extra hardware or custom-fitting the mounts. Removable Top Shelf The top rack is removable and allows you to go stealth, or keep it on for extra carrying flexibility. Height Adjustable Adjustable height design works with most road and mountain bike hub and tire widths, without having to twist or bend anything. Lifetime warranty