The Tacx Galaxia Rollers are the Ultimate Training Rollers. These are heavy, conical Rollers for optimal mass moment of inertia, designed to give a natural feel by moving with the body and has a sliding frame for easy transportation. Your movements are more free because you get close to the natural road cycling experience. When accelerating, the Galaxia rollers move forward as a result of the kinetic energy that is created and they move backwards when you slow down. With this patented ‘swing system’ you can work on your speed and suppleness without any concerns.