First real ride yesterday on a 3h winter ride

I found to be very fast and silent, like riding on a magic carpet. I was very happy However feeling is not reactive, and frame has lateral flex specially on the front end. But so far I did not notice this negatively when cornering, could be positive? (like motogp bikes)
So no good for sprints but very good for maintaining high speeds with low effort.
Big part of this I assume is because of the wheels, I have the new Schwalbe G one pros in 50mm mounted on 30mm inner width rims and 45mm profile

Definitively not 50mm clearance on the rear, and you can suffer with mud. The wheel will roll, but the mud will build on the chainstay and will come to the chainring and transmission.

Finally after washing the bike I found water on the storage box, I think I will make a drill and possibly removing one of the walls to make box bigger

Edit: I’m 183cm tall and seat height is 79cm, and frame size L with 80mm stem is perfect

What I did, I included all of the reach figures of all the components - handlebars, stem, frame and then compared the figures between the frames. Some bars can differ as much as 20 mm in reach.

My bike came yesterday and I finished around 90% of the build.
Along with the frame I ordered a pair of 9velo gravel wheels which showed up today.
Front wheel is ready, but I am waiting on another 50mm RX-PRO for the rear - which is fine, since the weather is pretty bad and I cannot ride anyway.

Build went smooth, even the rear break cable got through on the first attempt without any issues. I added some cable padding to prevent any cluttering, but that's it.
I made a mistake on the front break adapter and mounted it for the wrong diameter - not realizing that you could run 180mm. Lucky as I am, I had enough cable to pull it down and mount it for 160mm :-)

The stock seat post was way too short to reach my saddle height, but I simply re-used the seat post from my old bike.
I opted against integrated handlebars until I can figure out my reach and stack dimensions, but for me it looks nice enough as it is.

Components I used:

Frame
Frame: Mondince FM326
Size: M
Fork: 420mm

Drivetrain & brakes
shift/brake levers: SRAM Rival AXS D1
brake system: SRAM Rival AXS D1 (160/160)
rear derailleur: SRAM GX AXS, 12 speed
bottom bracket: SRAM DUB Road Wide
crankset: SRAM Rival E1 Wide, Powermeter Spindle, Dub, 42T - 165mm
cassette: SRAM XG-1275, 10-52T
chain: Sram X01
pedals: Shimano XT M8120

Cockpit
headset: PRO Headset Integrated Cable Routing (I prefered this one to the stock option for the cable routing below the stem)
stem: DEDA Mud Peak - 80 mm +/-6º
bar: Newmen Advanced Gravel Bar 318 - 420mm ("liberated" from my spouse since she is running 360mm)
handlebar tape: SRAM Red handlebar tape (wasn't the plan, my preferred PRO Race Silicon ripped while unwrapping it)
Spacer: ZTTO blue alloy spacer (from Aliexpress)

Wheels
wheelset: 9Velo 2026 Gravel Disc GB series 24H/24H - 28mm inner width
valves: 9velo stock, but with schwalbe click valves (SCV)
tyres: Schwalbe G-One RX Pro, TLR, 50-622

Seating
saddle: PRO Stealth Performance
seat post: PRO LT 400mm 27,2mm/ 0mm offset

--
In case you need to order SRAM brake parts:
For the rear you need 32mm flatmount screws (SRAM part: 00.5318.005.002) and the standard flatmount adapter for 160mm (it should be part 00.5318.018.001 - but I had that already here)

Front: use the Flat Mount 0F/20F | 140/160 mm (part number: 00.5318.018.000) for the front - it includes all bolts.
For 160mm discs, you need to build it with the 140mm side because that give you the effective range for 160mm. That's because the fork can take up to 180mm rotors.
If you want to actually run 180mm rotors, you need to switch the adapter to 160mm.