Rd13 is not the designation for the hub?
And you write you have the rd28.
Do you have a link?

Ceramic bearings are beautiful and of course run nicer. But not noticeable and the maintenance susceptibility is higher.
Not to mention if a carbon spoke is broken. You do not get so easily replaced.
Therefore, I decide against carbon spokes.

I wish you in any case good trip and fun with the set!

True, RD13 was not listed. I asked for the lightest possible build for the best price. Leon suggested this, I asked if he could remove the ceramic bearings and use steel (I'm not a big believer in ceramic), he said that these hubs were made for them, so worst case scenario, I put steel bearings in after they deteroriate. Also carbon spokes are new to me, it'll be a learning experience. I have never had a regular spoke brake or fail. We shall find out together if this was a good decision or not 

It appears the carbon spokes require a special hub. This is what I found on it:
https://www.yuananbike.com/product/carbon-spoke-wheeselt-road-rim-brake-wheelset-45mm-rim-depth-29mm-width-tubeless

It is https://www.yuananbike.com/

You can contact manager Leon directly on WhatsApp +86 157 3827 4372 or emial sales@yuanbike.com

The guy is very responsive and can help you build a custom wheel or choose something from their offering. You can tell him Jakub send You and he will give you a discount.

I sent an email to Leon, hopefully they can make it happen. Not sure if they carry the 711/712s, but I asked.

I personally have been really interested in the GRO2 wheels / rims from Yuan An Composites. The complete wheels with the RD13 hubs are just outside your budget but at 1450g, 45mm deep and a modern 32mm wide they check a lot of boxes for me as an allrounder.

This is the first I've heard of Yuan An Composites. Do they have a pretty good reputation?

I built up a set of 30mm deep wheels for about 400USD. It weighs around 1120g. I can't quite give a verdict yet as I don't have many kilometres on it yet. So if you're willing to source some lesser known parts from ali, you can build something pretty light for pretty cheap.

Did you build them yourself? I haven't made it down that avenue yet, but I'd love to. I started building a diy truing stand a while back. Now might be the time.

Can't find a picture of my frame on a scale.
Apparent the  S-Works is... 585g   

Dang. I didn't realize how much lighter the S-Works was. I thought ~970 was pretty light.

Wing has the same kind of fba email.

Damn! This is the frame I wanted about 2 years ago, and could only get if I did order... 30 of them. Resulting in a very expensive Aethos buy instead 

Do you know how the weights are on the Aethos compared to this frame?

I wonder if that's the same Adam at Carbonda?

Good to hear that other frames from the flybike catalog are available.

I've only ever dealt with Wing at Carbonda, but looking over the initial email again, this is the "from" box:

from:   adam@hz-fb.cn/adam@carbonda.com <adam@hz-fb.cn>