The name says it all. It's like running on air, but with a powerful boost. This treadmill is different from any you've run on before. It was designed to optimally perform high-intensity training programs. When running on the Air Runner, you burn up to 30% more calories than on motorized models. Unmotorized and ultra-light: The unique feature of the Air Runner is that it is powered solely by your own energy, without external assistance. You will be amazed at the tough workouts that are possible just with the strength of your legs. The Air Runner is also the lightest treadmill and, with a width of just under 84 cm, very space-saving. Optimal for interval training: The Assault team knows the effectiveness of interval training, which is why the treadmill was developed with HIIT in mind. The runner can vary the speed immediately and freely without any additional adjustments. You run effortlessly. Due to its elliptical shape, there is almost no impact. By the way, this bad boy has no maximum speed, so just run as fast as you can. Lifespan: The Air Runner is designed to give you a kick in the butt for many years. The frame and handlebars are made of stainless steel, and the slat belt has been tested for a distance of over 250,000 km. Yes, that's right, 250,000 kilometers; this is not a typo. The tension of the belt does not need to be readjusted, and the deck does not need to be replaced. The Assault AirRunner is easier to maintain and care for than any previous treadmills.