Unlock a world of custom mounting possibilities with the Yakima Hd Track 54-Inch Roof Top Rack Mounting System with CapNuts. These heavy-duty tracks form the backbone of your rooftop setup, compatible with SkyLine towers, OverHaul Hd, or OutPost Hd systems for a tailored configuration that suits your needs.Designed for adventurers seeking versatility, these tracks fit a variety of vehicles with ease. Install them on fiberglass, roll-up tonneau covers, truck canopies, bed rails, gear trailers, or any flat surface with accessible through-bolt applications. The end caps allow for easy installation of T-slot hardware without removing them, saving you time and effort.Built for durability, this system has a load limit of up to 500 pounds (dependent on system and application). Whether hauling bikes, kayaks, or a rooftop tent, it handles it all. It s also compatible with other Yakima accessories, including Landing Pad 26 and BedTrack Kit 2.