The hinge is the most critical part of any folding bicycle frame. The hinge battles huge forces coming from different directions so it must be immensely strong. Yet, it must be easy to operate, light in weight, and aesthetically pleasing. The Lattice Forged hinge was developed after two years of design, testing, and FEA analysis. Unnecessary weight was removed with intricate ribbing on the interior. Cold-forging and CNC machining results in the finest hinge on the market.