I have an "Autobike" which is about five or six years old. For those of you who aren't familiar with the product its a bicycle that shifts automatically through the use of counterweights and centrifugal force and a six cog cassette. It works very good and has service me well. My problem is the free wheel on front sprocket has too much play and has to be adjusted or replaced. If anybody has any knowledge of these bikes or any idea as to where to get parts I would appreciate knowing. Thanx.