The 2.5ae Elliptical is Great for someone looking for a quality Elliptical Trainer with exceptional ergonomic features. The 2.5Ae’s ergonomic frame is designed to create a smooth, natural stride, eliminating stress and strain on your body. It features 10 levels of friction-free magnetic resistance and a 14.3 lb precision flywheel to deliver a smooth, quiet workout. The 18 inch.