Road bike race number plate on the saddle rails

Do you want your $10,000 road bike to look even cooler?
Do you want your to look like bike pro, even if your leg can only hold 150 W for an hour?

I offer a simple race number plate solution.
Just 3D-print it in PETG (or any material you prefer).

Installation requires one M5 bolt and one nut (same bolt used as the 50 different carbon bottle-cages you bought)
A thread length of at least 15 mm is recommended.

Depending on your printer nozzle, filament, and print settings, you may need to adjust the spacer height.
After that, simply print a number sticker and it’s ready to use (or just write on it).

Update:

There are two version

Theoretically speaking tight version should match all rail perfectly if they match the saddle rail standard

But due to some saddle rail is a bit taller than others for some reason, you can use the loose version