I recently bought a new crossbar at Amazon's AUXPACBO store. Although I have waited for a week or so, the product I received is still very satisfactory. When I was visiting Pinterest by chance, I found Pin of this brand. If you are interested, you can check it out.
https://pin.it/3GYQ10R

 

Today, I took this crossbar and ran for a lap. When it reached 80km/h, its noise was very small. I sincerely share it with everyone.