Tonights ride , I had another issue ( lately I have had nothing but bad luck. ) I was following ben-o down a rocky incline when I heard a Crack. After Pete Long broke a chain stay earlier that is what I checked. we ll it wasn't that but then I tried to pedal and my crank arms were all over the place. it is interesting how much you balance relies on your feet not moving laterally. any way I cut the ride short and pulled the bottom bracket . this was a Sealed unit and it sort of just fell apart as I taking it a part. And I do notice one of the bearings is Missing !!! and the bearing that is there is in pretty rough shape.