Hey guys I got a question I was pending up a hill and all of a sudden I heard a clunk and my back tire was rubbing on the bike frame I think the rim is bent Cruz when I spin it by hand the wheel wobbles so I fixed it and the same thing happened again but worse please help
Sounds like your axle may have broken.
When you spin the rear wheel, does the rim wobble (forget the tire) as it rotates?
Looks like broken spoke and/or bent rim to me. But hard to tell just based on that video. HAve you checked any of the things that Joe_W listed above?
Also your plastic spoke protector (behind the gear cluster) has broken loose and is making that loud, scratchy sound. You can cut it out without removing the gear cluster.