I had the drive belt break after 22 hours. I put on a new one and went 4 feet and the driven pulley came off the shaft due to the bolt backing out. Only damage was to a piece I don't know the name of but it has 3 points that fits into the inside half of the pulley and has insulation of it. Some of the insulation was taken off and marked up the pulley. Any one have this happen? I ride mostly in dunes. Anyone have any experience with after market clutches?