If anyone has seen the riggins of the new system diatech and knows what im talking about...help me out. Ok well on the bottom of the SD is a little metal retainer ring that holds in the bearings. Every time I ride...the ring comes off and i lose all the bearings into the frame. any suggestions on keeping this in, but also not something permanent allowing frequent removals to replace and greese the bearings. please help. heres a pic of the piece im talking about.