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I had the same issue with my chinese VCLS post. The saddle was vibrating and rattling up and down when i rode stood up. Its because there is a small gap between the rail clamp piece and the circular hole where it attaches to the carbon post. To fix it you need to unscrew the 2 hex bolts on the side and dismantle the clamp. Then wrap 1 layer of electrical tape around the 2 round bits on the clamp(s) on each side, and then push them back into the holes. It will be a snug fit but it will stop the noise.
Superstar Arc31 and Arc22 rims are rebadged kinlin XR31T and 22T AFAIK.
http://www.superstarcomponents.com/en/arc31-ultrawide-aero-rim.htm
http://www.superstarcomponents.com/en/arc22-ultrawide-rim.htm