Quote from: bigApple on August 24, 2026, 09:57:56 AM
Hey guys, got mine replacement frame today.
I can see they improved things.
E.g. the mounting of the bottle cage screws inside the downtube.
Unfortunately the frame is broken, see the Video.
Transportbox is mit damaged, so i guess it happened before packaging.
Very frustrating.

Eric Cartman had awesomo 3000. This is bummero 3000 :/
Haven't heard of frames broken in transport for a long time. Very odd.

They're going to send me another frame. Then I'll have three identical frames here, two of which are broken. What should I do with them? 😅 Does anyone have any craft ideas for the broken frames?

That's a nice display for a coffee shop if you have one or if you know someone who has.

I suspect that when sanding before painting, too many layers of the carbon layup were sanded away. I think 4 or maybe 5 layers were sanded through, as you can see in the photo. Designs with edges don't seem to be ideal in this regard. I'll test the next frame very carefully.

Quote from: bigApple on August 26, 2026, 04:14:02 AM
I suspect that when sanding before painting, too many layers of the carbon layup were sanded away. I think 4 or maybe 5 layers were sanded through, as you can see in the photo. Designs with edges don't seem to be ideal in this regard. I'll test the next frame very carefully.

That's a normal carbon fiber layup look.

I know what carbon looks like. This is my 10th frame with a raw carbon finish. I don't think you understood what I meant. This isn't just a regular seam between two carbon plies. When the frames come out of the mold, they're sanded down to remove excess resin and prepare the surface for painting. However, excessive sanding can cut through the top layers of carbon. That's exactly what happened here at the edge in the middle of the down tube. When you press on it, you can feel that the carbon layer isn't thick enough here anymore.

Have you received the replacement frame yet?

You mean the replacement frame for my replacement frame? Unfortunately, not yet—since I'll be away from home for a whole month, I'd have to ask Jack to send the frame later. I don't think I'll get the frame until early to mid-November.

Yes, that is what I mean. I have read the thread and saw the issue with the first replacement.

Hi, I'd like to share my experience of the FM126 frame with you. This isn't my first frame from Mondince; I've previously built a few gravel bikes with them, and I've had no problems whatsoever with them.

Having read through the whole thread, I didn't have high expectations of the FM126, but when it comes to build quality, I was pleasantly surprised – all the surfaces have been carefully finished, perhaps because I received a revised version of the frame.
After riding over 1,000 km, I've found no signs of cracks or localised delamination in the frame. As for stiffness, I can only compare the frame to the Orbea Orca OMR and the Giant TCR; it's on a comparable level, though this is just my own subjective impression. Certainly, due to the wide fork, the front of the bike is much more responsive compared to the rear, but I don't feel that the bike is skittish during descents at speeds above 70 km/h.

Frame: FM126 size 54
Handlebar: Mondince 360x110mm actually 100mm
Wheelsets: Serande TRS65S - SR268
Tyres: Continental GP5000 - front 30mm, rear - 32mm
Rotors - Galfer Wave 160/140mm
Groupset - Shimano 105 R7100 Di2
Bottom bracket- Bikone T47 Steel bearings