W/O seeing those rings in person, I can't figure out where they go. Is the loose one flopping around made of plastic? Your handle bar clamp is way up on the tube. It needs to be seated next to the bearing to hold the tube assembly tight, or spacers are needed. Also that ring next to the bearing has a lip on it pointing up. I'm thinking that lip might need to be pointing down towards the bearing to help seat it. I'm not sure .............what do the directions say? Any assembly pics with parts in order? If you show us pics of the instructions blow them up, no fine print. Same with pics of the assembly order.