The rear tire from my son's bycicle was getting flat with apparently no reason.
I did try to repair it a few times but the solution didn't came until I installed one of these.
The STL available to download is for the Schrader tire valve type. Hopefully, the OpenSCAD script can be used to generate caps for other valve types.
bicycleTireValveSecurityCap.scad | 1.8KB | |
schraderValveCap.stl | 105.6KB |