The Top Sky Orbitrac Elliptical Exercise Bike is perfect for apartments or space limited areas, where space saving is a priority. It will provide a low impact upper and lower body workout using the natural elliptical motion to eliminate any stress on joints and ankles. Then, if you want to switch your workout to an exercise bike, a comfortable large adjustable seat makes the transition very simple. The combination of an elliptical and exercise bike workout will work more and different muscle groups than a singular fitness machine. So increase the value and effectiveness of your fitness machine by using the Top Sky Orbitrac Elliptical Exercise Bike All in One.