Yikes 2 grands seems higher than what I expected...
What seems off about the Medium size in particular that you noticed if you don't mind me asking?

for some reason the medium frame does not share some common dimensions (chainstays are shorter (403mm vs 408mm on others), which results in  reduced tire clearance (28mm vs 32mm), bb sits lower (271mm vs 273mm)). additionaly stack is only marginally higher than on the small version, but 40mm lower than on the large one.

i think that winspace only produced medium sized frames for initial testing, adjusted some things, but did not redo the molds, only made the adjusted ones for the other sizes

nice bike indeed! what size frame is that?

Do you have a link for the fiber in rims?

Various comments on the forum saying 32C on the 177 is very sketchy. Which is a major bummer for me. I want to run 32C Conti 5000 on 32mm wide rims on my next road bike. I've ridden 28 and 32mm back to back, difference is very material, yet peak torque showed on YT there's no penalty using 32C, either rolling resistance or CDA, proving you're running wide rims (32mm)

don't know if 1mm helps, but 28mm gp5k s tr on 25mm internal rims measure to about 31mm when mounted. see (not my video but is use the same tires on wr45s from light bicycle)

Just finished my build using leftover parts from my 2021 Trek Checkpoint (I had a full GRX mechanical groupset and 50MM DT240 Farsports wheelset on-hand). Frameset took 3 months from payment date to get shipped and shipping itself took approximately 2 weeks to get delivered here in California. First build from the frame up, so hopefully I didn't make any egregious mistakes.

Build with a size 51 frame weighs 17.5lbs/7.9kg with Favero pedals, computer mount and bottle cages. Overall, I was impressed with the frame quality and the finishing was excellent (the BB/headset were pretty comparable to my Checkpoint's). I have 32MM GP5000s on mine which would be the max tire width I'd be comfortable running.

super sleek, great job! do you by chance know how wide your tires measure when on the rim?

Good catch.Parapera Atmos2. Seems the same I would say but did you check the geometry table?
The geometry is a bit different. I think it is an slightly modified version to fit 34mm tires.
In my Speeder 52D 30mm yes, but 34mm I dont think so… Interesting in any case…

i do believe the atmos uses a slightly different design since it can fit 34mm tires and the geometry differs in a few spots i noticed, but only for 1 to 3mm

i bought a unbranded one (https://www.aliexpress.com/item/1005005278950651.html?spm=a2g0o.order_list.order_list_main.5.21ef5c5f5wzZEX&gatewayAdapt=glo2deu). but the wall thickness is not even, it ranges between 2 to 3,5mm when measured at the bar ends. also there a some wrinkles visible on the inside. not quite sure if i should use them.

is this the same with "the one pro" and the oem version? maybe someone can confirm?

Sorry my man didnt see the message before, here are links to the things i have purchased this season and am really impressed with. Im 6ft 2, 92kg and i am an XL in everything

https://www.aliexpress.com/item/1005004833728095.html?spm=a2g0o.order_list.order_list_main.17.7e81180292r7mw
https://www.aliexpress.com/item/1005002728072396.html?spm=a2g0o.order_list.order_list_main.16.7e81180292r7mw
https://www.aliexpress.com/item/1005005204472695.html?spm=a2g0o.order_list.order_list_main.28.7e81180292r7mw
https://www.aliexpress.com/item/1005004473354308.html?spm=a2g0o.order_list.order_list_main.56.7e81180292r7mw

do you by chance know if those exist without the branding?