Not entirely true. There are several materials that can significantly increase strength, multiple ways to print the parts, and you can always redesign them to be much more rigid and durable — this is especially important.

I’ve tested at least five different BTA solutions in PETG, and they worked decently. However, when I switched to Tritan HT, the performance improved considerably.
That said, exposing the parts to direct sunlight (for example, during a transition) will definitely hurt their longevity.

For an extra level of safety, you can coat the 3D printed part with resin — much like a carbon fiber + resin composite, but without the carbon. This usually turns the part into something extremely sturdy.

It's true that high-quality materials or coatings can be used for 3D printing, thus significantly increasing durability.

But with clever application and precise positioning of aluminum tubes, stiffness and longevity can be multiplied.
And this without increasing the weight.
For example, the mounting hole on to the handlebars is made with a bonded aluminum sleeve, allowing for tightening torques of the M5 screw that would otherwise be impossible in plastic.
The mounting threads for the bottle cages are embossed M5 nuts and can also be used to attach the computer mount.

Thanks! Definitely not going to spend that much extra for decals, glad I know now!

It's certainly a lot of money for "decals," but on the other hand, you can give free rein to your ideas and AI, thus creating a very individual and unique racing bike.
And the decals are much thinner than this you can Cut Out of Vinyl.

I really enjoy giving my Far Eastern bikes my own design with lettering and logos.

Another picture of the box and the BTA

Can you also customize the toolbox for an S-frame?

It should be doable in CAD with a fair amount of effort. After my vacation, I'll send you a PM. We can then exchange the necessary information and geometries.

My Velobuild TT in size M is finished and rides incredibly well – it's lightning fast!

The color is exposed carbon with a glossy clear coat and custom decals (which Velobuild produced for an additional fee and applied under the clear coat).

TRP brakes (with SRAM Blips)
SRAM XPLR rear derailleur (54/10-36)
SRAM Rival E1 Powermeter
ELITE EDGE 2.0 (65mm)
12cm of Spacers

Custom-designed toolbox
AeroCovers on the spacers
BTA for the Velobuild handlebars
All parts are 3D printed.

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.

Still having problems with the front end on my bike. Chris sent a new alloy stem, but I still have the same problems- even torqued to spec the handlebars can be turned. Also, the fork rocks back and forth like you can see in the video. Has anyone else run into this or have any ideas for how to fix it? Thanks!

Did you clean the steerer tube with alcohol/degreaser before installing the stem? In my case, a little grease from the headset bearing always got onto the steerer tube, and that's why the stem slipped.