Loooooong story short, I bought a 2018 Chieftain Dark Horse factory demo unit with 5k miles on it, and was happier than could be. I was told by the dealer I bought it from (2 states away) that the 5,000 miles service was completed and everything was perfect on it. I got it home and rode the bike for about 800 miles and noticed some belt noise so I took it into my local dealer. They had a tech look at it and it took him a long time to get the belt adjusted. I was told that the belt was too tight and they were having trouble adjusting it because the tensioner on one side was seized, but they eventually got it adjusted correctly. After a couple hours, I hopped on and went for a ride for about 30 miles... then my rear wheel started WOBBLING back and forth. LUCKILY, I was slowing down coming into a town and not at high speed. The guys behind me said they could SEE the wheel wobbling back and forth. I pulled the bike over and had it trailered back to the local dealer that had just serviced the belt. I spoke with the service manager and he informed me that rear wheel bearing had gone out. When I pushed the issue asking HOW a wheel bearing went out at 5,000 miles on a basically new bike, he just shrugged and said it was "uncommon". I told him that something else must have caused this, he insisted that nothing they did to the bike could have caused this failure. I have bikes at home with 60k+ miles on them, and I have never had this happen. Is there something they did that could have caused this? Has anyone seen this before? I feel like i'm not getting the whole story, any help would be greatly appreciated!