The previous sole f80 has been the best selling treadmill from sole fitness for the past 4 years now they have taken it further with the 2013 model bigger and better features to keep you motivated and entertained for longer the sole f80 folding treadmill has amazing technology which allows it to fold away which makes it easy to move around and to put away if you are lacking space key features of the sole f80 treadmill new upgrades include larger drive motor new lcd display and now features