With 4 „cables“ or only 2 meaning wireless group?
I am planning with Shimano 105, not sure if I should go for the fully hidden installation.

Apologies for delayed response - the integrated build was wireless, so just the 2 hydraulic cables running through the handlebar. Fully integrated makes for a really clean look. The handlebar, headset, spacers, and frame are designed to also accept 4 cables.

In my mind, the larger concern with a fully integrated handlebar is that you have to guess at the perfect reach dimension (and width as well, I suppose) sight-unseen on an also unseen frame. So this path may be best suited for folks that are: a) habitually lucky, b) happen to have measurements perfectly dialed, or c) are willing to accept that the first handlebar may not work perfectly.

That looks like the wrong clamp.

My seatpost clamps were just under 16mm.

Do the FSA and carbonda spacers play nice together?

They do fit together, but the seams run in different places. So you could assemble them a bit like Legos.

What size rotors is the 1056 set up for? Thanks

I thought this was more of a question of calipers than bike frame? I used an ultegra caliper set that was configured for 160 front and 140 rear - and I needed a spacer to use the rear 140 caliper with a 160 rotor. Similarly, I used SRAM calipers that were designed for 160 rotors and they worked without a spacer.

35mm fits.

Nice! Thanks for checking that! I didn't want to spend $100-150 on another set of tires only to find they didn't fit.

Sorry, no experience with ICAN or Carbonda wheelsets - I went with Light Bicycle and am pleased.

I was wondering what frame and fork weights people have been getting. Thanks for any info.

My matte black frames in size M were 1050 and 1062g. Cut fork was 463g.

Agree on the internal cable routing. I don't hear any rubbing (or rattling).

Handlebar bolts are fore/aft. The Geometry tab has the dimensions (i.e., M5 bolts on 44mm spacing). There is not a cover per se that can detach to help with cable routing (at least mine didn't have a removable cover), these bolts are just threaded into the handlebar.

Cobbled together a second, commuter version, from a mish mash of parts tonight. I'm done bike building for a while.

Also, weird that the preview is upside down...

Yes, that's Carbonda's integrated handlebar. It does make for a bit of a guessing game to get reach and width both correct on a new frame - but in my case, it happened to work. Only (extremely minor) quibble is that the top cap is a different matte black color than the frame/fork/seatpost/handlebars.

The bike ships with 1x 10mm and 2x 5mm spacers. Fortunately, the FSA ACR 10mm spacers (I'm using 5 here - will dial in exact fit later) are back in stock in their store for $4/each. https://www.fsaproshop.com/products/acr-stem-spacer These were pretty scarce for a few months.

Routing hydraulics was fine. I used a fishing kit & electrical tape. If not for the kit, it probably would have been Very Hard as the hose is not very flexible and there are a couple tight turns.

As an aside - it's tough to keep slack on these hoses within the frame, but there is some play on the routing inside the handlebar to hold some slack. I presume the hose just bends horizontally within the flat section. That's great for me, since I don't want to have to recut the hose if I remove spacers & adjust height. Also the spacers all detach in the middle meaning you don't have to completely disassemble everything to add/remove one or two.

I'm using the $10 headset that Carbonda sells - and it also works great. Pretty sure I wouldn't be able to tell the difference between this and a name brand version.

We didn't have any real assembly issues. The flat mounts for calipers were faced correctly & even the pressfit BB went in smoothly w/o any creaking (yet).

Overall, the frame, fork, seatpost, handlebar combination is a pretty incredible value and the ride is pretty compliant. I'm super pleased.