Bicycle U-lock holder

I wanted to use the same U-lock for a second road bicycle
So I designed a Bicycle U-lock holder
Firm and strong support !

The diameter of the frame should be around 28 to 32 mm
Diameters for U-lock must be :
- 30 mm for the base
- about 13.5 to 14 mm for the "U"

Need two M5 nuts and two M5 hexagon socket head cap screw


Edit 2023-07-10 : Updated STL file : the new version is a little bit stronger