Frame, forks, and rims.
Wheels and stem.
Mine was okay. The forks and frame felt solid but the wheels pooped out on me. The forks and frame right now have a new owner and are lasting. I broke some other parts on it but I can't complain really. For not having great specs it was pretty nice. The back wheel felt pretty solid even though mine locked up and the bearings blew. For a 430$ complete or whatever, definitely 4 stars. The frames the best part though. My rims on it were unbreakable though, someone else has been using em for a while now.