We purchased the bike a year ago and have used it every night for about an hour and just experience the problem noted above. Took the book apart and all of the plastic inside the fly wheel assembly were broken in many locations. There is no way to repair it. Could not find any information on the Proform website on replacing the part or what it might cost. $300 for a year is not to bad, but I would expect more. Our last bike lasted 4 years and was comparable in price. Disappointed.