Sanghyun Jeong and Jun-Tae Park have crafted a novel piece of transportation for the “Seoul Cycle Design” competition. The compact bike sports a large 20-inch wheel design for serious riding on an undersized frame. The bike also boasts a built in gear design, thus eliminating the use of a chain. The coup de grace comes in the bike’s completely compact design folding at the center and seat leaving and end result no bigger than a backpack. Further information is available here.