Awesome!
Especially loving those flip chips as I'm not so sure about geometry planning from scratch!

Wrote them to ask for distributors here in Europe. So far without a reply though. If anyone knows more, let us know! 👌

Any indication for what they're retailing for roughly @Sakizashi ?

OG Evkin has a new fork model.
It has a curvature of 50mm offset which is meant to deliver better shock absorption than the older rather straight ones with the same offset.

https://a.aliexpress.com/\_EvZQj0a

Though it's like double the price - is such an effect really noticeable hence worth the price difference?

Thanks!

From my understanding, the only laminate factory that makes those is us based.

Take a look at this https://it.aliexpress.com/item/1005007742379266.html

Thanks! Wow, that's a price point that almost gets me nervous!
Are those known and trusted on here?

If anyone else has something to recommend, happy to hear!

It's a bit of a special case as I wanted a foldable gravel bike. 
So the frame is one of the few folding ones available: 
https://www.changebike.com/change-mountain-folding-frame-df-933b

The bikes normally built with this are those, one with suspension, one without, fork length axle-crown is 460mm: 
https://www.changebike.com/change-mountain-folding-bike-df-912b](https://www.changebike.com/change-mountain-folding-bike-df-912b

What I learned about the frame/fork: 
tapered-headtube (1-1/2 to 1-1/8) and geometry (it expects a fork with a 460mm axle-to-crown height) 
head tube angle is 71 degrees

Someone else who built something with it was apparently using a fork with a-c of 398mm, but as a pretty tiny person.
A company that was building those into gravel bikes installed either road (380mm) or MTB (465mm) forks on their bikes, so also the short ones seem to get not too twitchy in steering (i hope).

The bike I'd love to emulate is this one in 53cm frame size 
https://gravelbikedatabase.com/bikes/2024-rose-backroad-al-grx-rx400/

Though what would that mean for a-c length, offset,rake and trail with the given frame?

I tried to get an much geometry data as possible and put both in a geometry tool. 
https://bike-stats.de/en/geometrie_vergleich?Bike1=Changebike_Flatbike%20Road%20Warrior_2024_17&Bike2=Rose_Backroad%20AL_2024_53

Thanks for the detailed input!

Just to add - the Shimano RD-RX820 for 1x12 should do up to 51 teeth and doesn't cost a fortune either.

In fact I would probably opt for this rear derailleur over the 1x GRX 812/822 RD (even if running 12 speed).

How comes - What's better?

Whoa - Great input!