I went riding on Sunday at a local track in Macon (ICR). My third time out I was going through a banking turn and as I accelerated out of the turn I felt my back tire lock up… I though maybe I had broken a chain. To my surprise the back sprocket had ripped off the hub. Being a new bike and because of good maintenance habits, the day before I checked every bolt to make sure they were good and tight. In addition, before I went out that third time I didn’t notice any bolts missing when I lubed the chain. After looking at it closely, there are no signs of sprocket waller. I’m thinking the bolts sheered off. Unfortunately because of the sandy track conditions and the amount of bikes, I could not locate any of the bolts. I did fine a piece of the hub though. Do you guys have any thoughts on this?