Chink frame anon here. I built the bike. It rolls and shifts gears. The frame and fork were from ali express and most of the other parts came from ebay with the exception of the wheels inner tube tyres and shifters. Also the brake rotors and calipers. The crankset was an amazon chinese special that included a bottom bracket.

The gearing feels too easy so I'll likely swap the frknt chainring for a larger one in the future but for now I like it. The fork brand is apparently not the higheat qualuty but I'm not hitting mtb jumps so it is what it is.
>pic rel(red and black is the china special. the green is the shitbike I bought from sportspower years ago)