You didn't buy that burly pick-up truck to carry a couple bikes in the back and get squished with your gear in the cab, did you? If you envisioned a little more carrying capacity in that four-by-four, the Yakima BedRock 4-Pack with Locks will help you realize this dream. This multi-sport, four-pack tower system rides above your truck bed, so all your gear fits below it for optimal efficiency. It installs and uninstalls in a flash with quick-release levers, without need for tools or an engineering degree. The SKS lock core package secures the rack to your truck, so it doesn't walk away with your bikes, skis, boat, etc. Compatible with all Yakima accessories, this system gives you limitless capability. Time to use up those vacation days.