Explore Everything on Instagram: "Yerka has unveiled a bicycle that integrates its frame into a self-locking mechanism, eliminating the need for external locks and reducing theft risks. This innovative design incorporates the locking system directly into the bike’s structure, making traditional cutting techniques ineffective. By merging security with design, Yerka enhances convenience for urban commuters and represents a new move toward built-in, hardware-level protection in personal mobility. .

I designed a locking mechanism that is really strong and completely 3D printed (more info in comments).

Self Locking Weightlifting Belt

Mechanisms: Lead Screws And Ball Screws