Discover the ultimate adventure companion with the Yakima BigStack Boat Carrier, designed to streamline your outdoor excursions and unite your crew with a single vehicle. This revolutionary carrier can transport up to four boats on your roof, freeing up space for gear and unlocking endless possibilities for multi-sport adventures.Installation is hassle-free, thanks to universal mounts that fit most crossbar shapes, including round, square, factory, and aerodynamic styles. Built with a robust SteelCore frame, this carrier is engineered for durability and strength.Managing multiple kayaks is effortless with the AnchorHead tie-down system, heavy-duty straps, and Bow and Stern Tie-Downs, all included. The BigStack is perfect for transporting whitewater boats, combining security and adventure. For added peace of mind, it's compatible with Sks Lock Cores (sold separately). A minimum crossbar spread of 24 inches is required for optimal performance.