SKS – Same Key System – is security simplified. One key lets you lock and unlock all of the components of your Yakima system. Rack locks to vehicle. Gear locks to rack. Create your system, then order the number of lock cores you need – all fit for your single key. Upgrading to a new system? Our Control Key lets you swap your SKS cores from an old one to new one. Adding on? Order more cores customized to fit your key. Simple.