I also finally managed to build my Velobuild TT-023. Attached a photo of the finished bike.

Here is my setup:

Frame: VB-TT-023,  1022 euro
Bottom bracket: Senicx ceramic t47 bb, 44 euro

Wheels: Elitewheels 80mm, 370 euro
Tires: Vittoria Corsa Pro G2 TLR with TPU Ridenow innertube, 101 euro
Rotors: RT-CL900 dura-ace, 45 euro

Groupset: shimano Ultegra/dura ace di2 12 speed for tt bike, 1004 euro
Chain: SUMC oil slick 12s, 48 euro
Cassette: ztto 12 speed oil slick, 26 euro
Powermeter: Stages R8100 170mm, 231 euro

Saddle: Pro stealth aero 132mm carbon, 90 euro
Bottle and cage: Elite Crono CX, 31 euro
Pedals: Ultegra R8100, 48 euro
Garmin mount: Closethegap raceday evo fi, 60 euro

Tools: misscelanious, 46 euro

Total: 3166 euro

The installation process was quite easy. Most exciting part was cutting of the fork (measure ten times, cut once). The cable routing was very easy. The only downside I have noticed so far has to do with the cassette. The Ztto cassette doesn't shift as beautiful as an ultegra cassette.

Quote from: rene2879 on July 19, 2026, 09:21:34 AM
sure sure, pls see enclosed

Thanks! 

Quote from: rene2879 on July 14, 2026, 02:37:33 AM
Yours might twist, sooner or later. I designed the following fixation.

Is it possible to share the 3d file? Really like this fixation and want to use it.

Quote from: mattgolt on July 29, 2025, 12:31:42 AM
Hey there,

It's over in the other VB TT-023 thread. Here you go.

Be mindful: Just yesterday it has surfaced that this toolbox only fits the L frame. I'm now looking for Guinea pigs that have the S and M frame and can send me detailed photos so I can adapt the toolbox for these frames (possible some failed prints involved).

I am starting to build up my VB TT-023 frame and was wondering if you had the .stl files for the toolbox in a size M frame @mattgolt. Hope to hear soon from you.