Three China bike rules.
1, If it's a Chinese fluid drain it and replace it.
2, If it's a chinese rubber product, Replace it soon!
3, If the bolt is put in by a Chinese worker, Loctite it and tighten it.
The oil is probably made from whale blubber, The brake fluid is recycled from sewer water and the rubber will melt if it's ever is exposed to anything but it's natural environment....And the bolts fall out to let You know the bike needs love
