The Nautic Kayak Lifter is a complete system for easily loading and unloading your kayaks on top your car. With an 80kg load capacity, it does not require any heavy lifting and a single person can operate it using the included winch. The unit is designed to be neatly stored on the roof of your vehicle beside your kayak when not in operation. Important Note: Designed to fit Rhino-Rack Vortex and Thule Aero systems with bar overhang with at least 100mm excluding pad and clamp setups.