Get ones with a 28 or 30mm wide rim bed, makes glueing the tubular much easier while also minimizing the chance you're rolling a tire off of the rim.

For a seatpost topper I believe you can also use the Trek Emonda/Boone toppers, so potentially one of the AliX copies as well.

Update on the seatpost clamp saga: had to involve the Aliexpress overlords but finally Airwolf responded with a general link (something like 'extra paint cost') and I managed to order (and receive) two seatpost clamps.

One bottle boss has come loose, Airwolf is refusing any kind of warranty, so I gave up and epoxy'd it all together. Did a 270km gravel trip last weekend and it's still holding, so fingers crossed.

The bottom headset bearing was already shot so replaced the headset with SL7 bearings (and the SL7 headset compression ring), I should have done this months ago, finally the headset play is gone and the steering feels smooth. I'll ride this bike at the Gravel World Championships later this year so every little improvement counts

Ordered a second one of these for my GF, in the champagne pink colourway - this time I'll use the SL7 parts straight away (having to redo the cabling is such a hassle!). With the Black Friday discount it was a fantastic deal.

Yep, my dad got one, I was very impressed by the build quality of the frame and the components. Only minor issue I had was with the convoluted seat post clamp mechanism, it was a very tight fit but I'm not sure if the original is any better. If this frame had a round seatpost (or if someone can print an adapter) I would get one for myself.

Adding on to my questions:

Does anyone know if the trail mixer brake adapter is required to run the front fork in the forward position as it is on the Aspero?

Probably, since the distance from the brake caliper changes when you flip the chips.

The original Cervelo expander doesn't fit, which is too bad because the design is a lot more elegant (more outward moving parts, better ridges on the gripping part).