The rig is finally finished! It was a really stress-free build. Routing the cables through the head tube and cockpit was easy. I’ll have to hold off on initial ride impressions for now—I want to take this beauty out in nice weather. 😀 It tipped the scales at 6.645 kg in the end (ready to ride, including pedals, bottle cage, and Garmin mount)—that’s a solid weight to work with. Now my own body needs to go on a similar diet; otherwise, the rider and the bike won't really match. 😁 A parts list with weights will follow. The total cost came to around €3,800 (though I reused the crankset, chain, and cassette from my old bike).

Okay, so the original LTK bearings are actually a tight fit; I had to press them in with my fingers. The other issue is that I have to use the Lightcarbon C-ring because the other two (FSA No. 55 and the original LTK one) don't fit the headset dust cap. That C-ring, in turn, only fits properly with the original LTK bearings; with the FSA headsets, the Lightcarbon C-ring doesn't seem to seat correctly (it doesn't quite match the bearing's angle or chamfer). I also have two different size specifications for the FSA headsets—I'll take a photo of that later. With the current setup, I'd have a gap of about 2–3 mm above and below the head tube.

Mine initially protruded a few millimeters, now it lies a little lower, but not 8mm.

How are the brake lines routed? The front brake line is self-explanatory: on the LTK fork, it exits at the front of the steerer tube and runs directly through the FSA headset and spacers into the Lightcarbon HRB17 handlebar, leading to the left brake lever. What about the rear brake line? In the attached image, the red circle represents the steerer tube viewed from above. Do you route the rear brake line like the green line (where the line runs upwards behind the steerer tube) or like the purple line (where the line loops around in front of the steerer tube)? In the latter case, the front and rear brake lines would cross each other—either at the level of the steerer tube or, at the latest, where they enter the cockpit. Hopefully, someone understands what I mean. 😄

Ah Just found the Tesa Sugru Hint!

Frame is @ my home! Looks perfectly. Waiting for front derailleur and Zen Wheelset. Should be round about UCI weight Limit @ the end. 866g for my painted frame is fantastic (Size L). Don't buy the heppe thruaxles, cause the original one are only 18g heavier. Bottom Bracket T47 is well threaded. I can't wait to ride my new mountain goat next year @ötztaler Radmarathon.

What Vinylstripes you bought? You have a Special technique for that or freestyle? Have a blackmatte Tantan and perhaps this is a possibility to Upgrade the optic.

Thanks for your input. Ultimately—with the exception of the front and rear derailleurs (Force components from my old bike)—all the components will likely be SRAM Red. As for the wheels, I went with a 1077g ZEN wheelset featuring Alpina Hyperlite spokes. My goal is to end up at around 6.8 kg for the complete, ride-ready bike—including pedals, bottle cages, and a Garmin mount. That is why I am looking for a handlebar in the 280–330g range.