Collapsible wheel

grabcad

During a conversation with a friend, we discovered that folding bikes can only fold to a size determined by their wheels. I developed an innovative concept to enable bikes to fold even smaller while maintaining a larger wheel. This design involves disassembling the wheel into five sections—four rim quarters and a hub—which would be tensioned to the hub with cables or cords. The sections could be nested together when disassembled. However, the main challenge lies in achieving a balance between strength and weight for the design, as it must be both durable and lightweight enough for easy transportation.