The Thule XK2 - Xsporter Adapter makes the Xsporter capable of mounting to specified pickups equipped with a bed track system. It is very easy to install without the need of a drill.  It's the only known multipurpose pickup truck rack capable of mounting direct to bed track system.  Long lasting, great looking high strength aluminum construction.  Use of the XK1 Adapters reduce the Xsporter carring capacity to 400 pounds.