Mondince FM306 is close to what you are looking for. 68.9-deg head angle, 50mm tire clearance, 27.2mm round seat post so you can put dropper posts on. 1100g frame weight.  the only downside is it doesn't have in-frame storage. But neither does Stagmata.

I am just curious, why dropper post is not one of the top features of most gravel bikes?  Dropper post is a MUST on mountain bikes. And I find it very useful on gravel bikes. Most of the fire roads I ride have many long sections of 15 - 25% grades, many of which are rutted after the winter storms (we get rains only in winters here in California). Going down those steep rutted gravel roads without a dropper post is very sketchy.  But I find that most gravel bikes design choose to use D-shape seat post, eliminating the possibility of dropper posts.

L-Twoo and Shimano are not truely wireless and you need to put the battery in the seat tube. Doesn't work if you want to put a dropper post. Also, the extra wiring is just messy.

I just think that the 105% rule is just marketing BS for average amateurs who don't race.  Look at our bodies, even the fittest person have a much larger cross-section than the wheel/tire. Plus, with any hills, the climb speed won't matter in terms of aerodynamics.  On the downhill, gravity is helping so aero is playing a secondary factor anyway.

Hey everyone,

I'm looking at this ZTTO Cassette https://it.aliexpress.com/item/1005008761317651.html and was wondering if it's compatible with my setup.

I run a SRAM Rival eTap AXS 2x12.

Also, does anyone have real-world experience with these ZTTO ultralight cassettes regarding shifting quality and durability compared to the original SRAM ones?

I have two of these.  they are not compatible with AXS which uses Flattop chains. They are designed for "regular" chains like SRAM Eagle, KMC X12 etc.
It kinda works with flattop chains but it's loud.  I am using SRAM Eagle 12 speed chain on mine and it has been working fine for the last year. ~ 1000 miles first as a gravel bike on dirt and now serving as a road bike.

the shifting is fine but sometimes it will take a bit longer to shift. definitely not as smooth as the SRAM cassettes. but it works for me.
Still a bit noisy in 2 cogs (the 4th and 5th). It drove me a bit crazy for a while and I tried all sorts of things without success. Now I just try to avoid those two cogs as much as I could. lol.  In the other cogs it's pretty quiet. I think it's probably due to their manufacturing consistency.

I two wheeltop 1x systems. One is their GeX to run on my road bike as a 1x setup.  used for 1800 miles.   the other is a OX 2.0 mountain rear derailleur, used for about 1000 miles.  Both worked perfectly without issues. I tried the race option but it drained the battery too fast without much gain. So I am using the regular setting.

What they impressed me the most are the cost and the battery life.  battery last a few hundred miles so I only charge them once every few months. Never got stranded. 

Another big selling point is that they can work with any cassettes 7 speeds to 14 speeds so it is a big plus for me cause I have many bike parts lying around. I just rigged up a "gravel bike" using an old mountain bike frame and 11 speed cassette to use with the OX 2.0. Neither Shimano nor SRAM could do this.

My Spcycle M-05 29er hardtail has has a very similar history as your bike.  It has become my bikepacking workhorse over the past 2+ years.

Nice that's a Zniino H-bar?