Techmotion's repair techs often report back that there was little to no actual problem with these machines during routine maintenance. Occasionally they do need (IN HIGH (I SAID HIGH) USE SITUATIONS)a drive or walking belt replaced. The drive belt is fairly standard in $, however the belt is on the high end retailing for about $425.00. That said, this machine is IMHO one of the best machines for a gym (a little out of the standard home price range but who am I to judge if you've got the cash, the Landice L9 Club ProSports Trainer is THE treadmill I would choose.) Quiet, sturdy even for bigger people, strong motor...can be used for LONG periods of time by the most heavy duty users without problems. Cheers.