Half Rack – Sport Series – Life TracThe Pre Owned Life Trac Sport Series Half Rack is our most space-conscious rack. It offers the same effectiveness and customizability as the rest, but gives exercisers more room for their workouts. Sport Series Half Racks can be used as an essential piece of strength training for individuals and as an intense small group training area. Modularity allows for each rack to be customized even long after it’s installed, so it can grow with your training needs.