Wow, this thing is freaking nutso. A bike based on suspension bridges. From the Wiki.
“Pedersen wrote that he developed the hammock style seat first. It provides suspension from road imperfections with much less weight, 4 ounces (110 g) instead of 3 pounds (1.4 kg) of traditional leather and steel spring saddles of the day. Pedersen then developed a frame, a truss assembled from several thin tubes, around his new seat design. He attributed his inspiration to the Whipple-Murphy bridge truss. The design initially did not support seat height adjustment, and even after some adjustability was added, required the manufacture of eight different sizes. The non-standard frame design would not accommodate a traditional front fork. Instead, Pedersen developed a fork that also consisted of thin tubes assembled into a truss, which was attached to the frame with bearings at two distinct points, instead of through a traditional head tube. Pedersen also received patents for a chainwheel and bottom bracket combination and lightweight pedals.[2]”
