Question to all who have bought this frame and built their bikes: Do you use the included headset or use an after market solution?  The one comes with the frame has little holes for cables and it makes the cables bent too much.

The ones that came with the set are useless. The worst problem was that the cables would twist in one direction after a few kilometers of riding. Furthermore, they were so tight that the housings quickly began to wear out. I bought this set and the problem disappeared.
https://sklep.token-polska.pl/m-lite-tk3256-is52-286-is52-40-p-1005.html

Hi everyone
I think it's time to write a few words about my M861. I built the bike about 1.5 years ago. It's ridden over 4000km, mostly in mountainous terrain. After about two months, I had to replace all the bearings. Actually, it was only after installing the Endura ones that they were okay, let's say. I previously installed them from a local shop, and they lasted a month. I bought new ones on AliExpress, and the same thing happened.
The handlebar bearings are in the same situation. Only a brand-name set solved the noise problem, although not completely.
In the fall, the rear swingarm cracked, and I received a new one free of charge.
In the winter, more noises appeared from the crank area. Thinking it was the bearings because they were already a bit worn, I waited until spring to replace the entire crank with a xx crank with a Dub system.
Meanwhile, play appeared in the upper swingarm mount.
After a few measurements, it turned out that there was about 0.02mm difference between the bushing and the bolt. The bolts were probably wearing out. A friend of mine made new, tighter bearing bushings, and so far, everything's fine. After installing the new crankset and bearings, it turned out the noise was still there. I started lubricating everything I could, including the frame bearings, but nothing helped.
I even bought new bearings for the BSA cartridge, which turned out to be unnecessary.
I pinpointed the source of the noise with a stethoscope. After removing the BSA bearings and carefully inspecting them, a crack appeared in the BSA cartridge. The seller ignored the issue.

http://youtube.com/shorts/_7fq1cAbbs0?si=nfqNHjmwzOSGxziB