Rhino-Rack Vortex 2 Bar Roof Rack - The Rhino-Rack Vortex Cap/Topper Trackmount Roof Rack system is permanently fixed to either a pickup Cap/Topper or hard top tonneau. This system uses the Rhino-Rack Vortex black bar with tracks to complement the sleek stylish lines of your pickup while still incorporating the Rhino-Rack strength and durability that they are renowned for. The great benefit of this roof rack system is the ability to slide your cross bars along the track to accommodate various sized loads. Trackmount bolted onto your cap/topper Maximum load rating of 220lb Always check the cap topper manufacturer for recommended load capacity and always use the lower of the two ratings. Includes: 2X - Vortex Bar (Black 54in) 1X - Quick Mount Leg (x4) 1X - RTC Tracks (63in) All Hardware and track end caps included