Author Topic: VeloBuild VB-TT-023  (Read 341502 times)

Kel-vin

Re: VeloBuild VB-TT-023
« Reply #420 on: March 08, 2026, 04:03:12 PM »
After being sold on time trial riding for a while, I wanted to switch from rim brakes to disc brakes.
After reading a lot on this forum, I decided to go for the Velobuild.
I ordered through the Velobuild website after Chris checked the sizing.
I chose a size S.
I'm 176cm tall with an inseam of 80cm.
My saddle height is 70.9mm from the center of the crankset (165mm).
I have quite short legs, and that became apparent when I unpacked it and tried to assemble it.
The seatpost definitely needs to be shortened.

The frame was delivered super fast within 14 days of ordering, and the box was completely intact and undamaged.
After unpacking, I encountered my first setback:
the top tube bolts
I hadn't asked for this, and it wasn't visible in the photos on the website.
I ask Chris about my problem he would change the pictures on the website.
Everything else was very well packed,
and all the parts were complete.

Parts list :
Frame: Velobuild TT size S
Shifters: Sram s900 with leap components
Sram Force E1 Derailleur
Sram blips with leap components
Evosid cranks 165mm with 58t
Sram Force e1 flattop chain
Sram Force e1 10/30
Cema Bottombracket t47
Aerocoach ascalon cockpit extensions
Front Wheel Aerocoach Titan 100mm with Conti TT
Disc Wheel Still looking for it some tips?

I'll mainly use the TT for fast time trials.
The setup will therefore be 1x12.

I started building.
I started by spraying all the bolts black.
This should actually be standard.

After shortening the fork, I discovered the first problem.
The included expander plug was too long, or was it simply a dirty fork?
The solution: I installed a shorter expander, 26mm instead of 45mm.

When I had the carbon stem in my hands, I already had my doubts about its strength.
After reading on the forum, I knew this was a common problem.
After receiving the frame, I immediately emailed Chris to ask why I hadn't received the alloy stem, even though it was listed on the website.
Unfortunately, because of the holidays, this took three weeks to send. Its on my way atm.
I couldnt wait to build this monster ,So I tried the carbon stem.
I did it like this: I applied a thin layer of carbon paste to the base bar.
I tightened the expander bolt 2nm and the top bolts to 5NM, so I could then tighten the bottom bolts according to Chris's advice 5nm
Unfortunately, the stem failed at 2NM and split in two at the front.
I'm glad the aluminum stem is on its way to me.
Fortunately, Chris is easily accessible and acts quickly, which I'm happy about.
I'm waiting for the alloy stem this week so I can continue with this monster.
I can't wait to ride it.

Annyone Else had problems with the carbon stem?

Will be continue..


Hmpf

Re: VeloBuild VB-TT-023
« Reply #421 on: March 09, 2026, 06:27:00 AM »
Is there a new alloy stem available? Do you have a link or photo for it?

Kel-vin

Re: VeloBuild VB-TT-023
« Reply #422 on: March 11, 2026, 03:44:47 PM »
Is there a new alloy stem available? Do you have a link or photo for it?

Yes, it's available. If you check the velobuild website, it's listed in the description. I'll post a photo as soon as I receive the stem.

Joda55

Re: VeloBuild VB-TT-023
« Reply #423 on: March 11, 2026, 09:00:41 PM »
Yes, it's available. If you check the velobuild website, it's listed in the description. I'll post a photo as soon as I receive the stem.

Quick question: I'm not building a TT bike but the VB-R-368.
I will swap the bars for aero drop bars with TT clip-ons from a Lapierre Aircode.
But I'm getting this separate carbon stem for it https://www.velobuild.com/products/2021-new-carbon-handlebar-with-separate-stem

Do you think I should be worried and ask for an alloy stem instead?

Hmpf

Re: VeloBuild VB-TT-023
« Reply #424 on: March 12, 2026, 03:02:11 PM »
The problems are with the stem of the TT023 frame. Your stem is completely different.

Juul

Re: VeloBuild VB-TT-023
« Reply #425 on: March 13, 2026, 03:50:18 AM »
There is a new alloy stem??

I went to the website and indeed it says that.. I am looking forward seeing it Kelvin.


I am still struggling with the flex in the handlebar.. I get that the flex in the handlebars give more comfort.. but it is a little too much for my liking. Especially when cracking already two stems (the one now is holding just fine), I have some trust issues :) 
But after seeing the video of Alex on GCN on his China build with his horrible handlebar flex, mine is all things considered not that bad.
But he listed a flexible steerer tube as the problem (not the handlebars/ stem themselves).

Additionally.. still debating if I want to go through the trouble of cutting the handlebars are bit shorter (the longer the reach/lever, the more flex you have ofcourse).
But then I would have to go through the trouble of bleeding brakes again etc... :)

Willos

Re: VeloBuild VB-TT-023
« Reply #426 on: March 18, 2026, 05:27:54 PM »
I recently upgraded my aero bar to the winnow hb052. But now I have the problem where the winnow handlebar are too low and to far for my liking which makes the handling worse.

I dlike to put back the original handlebar but keeping the aerobar themselves. But the spacing between the spacers is different which makes them incompatible.

I could also put the aerobar on the VB plate but then they are not angled and the plate is missing holes for front hydration system.

Anybody came up with a good solution? I saw a random video where the guy just flipped the winnow handlebars. Any success with this?

Thanks!


rene2879

Re: VeloBuild VB-TT-023
« Reply #427 on: March 19, 2026, 01:48:17 PM »
...can someone pls share th 3d print file for a Shimano battery holder in the seat post of the tt-023?
Many thanks in advance.

muringuets

Re: VeloBuild VB-TT-023
« Reply #428 on: March 20, 2026, 11:36:35 AM »
I recently upgraded my aero bar to the winnow hb052. But now I have the problem where the winnow handlebar are too low and to far for my liking which makes the handling worse.

I dlike to put back the original handlebar but keeping the aerobar themselves. But the spacing between the spacers is different which makes them incompatible.

I could also put the aerobar on the VB plate but then they are not angled and the plate is missing holes for front hydration system.

Anybody came up with a good solution? I saw a random video where the guy just flipped the winnow handlebars. Any success with this?

Thanks!

You can use the Winow bar upside down, so the brakes are higher. I did this, and it worked. Not sure about the looks, but there are TT bikes that use that layout (higher bars)

alfiomotrambo

Re: VeloBuild VB-TT-023
« Reply #429 on: March 20, 2026, 11:41:52 AM »
...can someone pls share th 3d print file for a Shimano battery holder in the seat post of the tt-023?
Many thanks in advance.

I couldn't find the 3D file :( but I know someone uses this holder https://it.aliexpress.com/item/1005010261686999.html, I hope it can be useful to you :)

greymagno

Re: VeloBuild VB-TT-023
« Reply #430 on: March 27, 2026, 09:44:06 PM »
Anyone thinking of adding a rear storage box? Not too large like the shiv, but how the Quick TR1 does it.

The frame boxes posted here look nice too, but didn't see a medium frame size print file.

lovatoarthur

Re: VeloBuild VB-TT-023
« Reply #431 on: March 29, 2026, 12:06:43 AM »
I've noticed the thru axle (165mm length) doesn't thread all the way into the UDH, is this normal? Also, the UDH has M12x1.0 threads, but the thru axle that came with the bike is P1.5. Aren't those incompatible?
« Last Edit: March 29, 2026, 12:27:17 AM by lovatoarthur »

JBS

Re: VeloBuild VB-TT-023
« Reply #432 on: March 31, 2026, 12:23:23 AM »
I think your UDH hanger screw isn’t properly tightened. When I received my frame, mine was barely hand-tightened.

rene2879

Re: VeloBuild VB-TT-023
« Reply #433 on: April 06, 2026, 11:18:03 AM »
Btw… where to put the garmin mount? Any recommendations?

Bernhard-29

Re: VeloBuild VB-TT-023
« Reply #434 on: April 07, 2026, 03:51:03 AM »
Btw… where to put the garmin mount? Any recommendations?

Hello,

I designed a small 3D printed part that can be used with a standard mount and won't twist.