Which carbon bottle cage would you recommend?

[tcross]

Are these the ones you are talking about, for about 100kuai?
https://m.intl.taobao.com/detail/detail.html?id=524056693472&abtest=24&rn=580f0b4652022946739ce8cffe2d451b&sid=1ffb286fb599ddb7994bbfcb135ab584

Those are it, stiff and light with that little lip to retain the bottle in it.

You can find them cheaper. Just search GUB on Taobao and more will come up.

[carbonazza]

OG EVKIN. They seem to be carbon versions of Specialized's Rib Cage holders, which are excellent. Never lost a bottle, and they allow for some side-entry.

I use the OG Evkin too, never lost a bottle either.
In my experience the Bontrager type of cages, and many others from Ali, loose bottles on cobbles or other rough pavement.

[1Sigma]

I ended up going with the Riderace ones. The OG EVKIN look quality, but when it comes to non-critical parts, I don't mind cheaping out a bit. 

Let's hope I don't regret it!