Graphic designer and typographer Stefan Sagmeister and multidisciplinary designer Jessica Walsh have collaborated to create a cool bike poster that's made up of 4,209 bike chain links. You almost can't believe it until you look at the detailed shots. The poster was created for PUBLIC, a San Francisco-based bicycle and gear company that designs and sells urban bikes. Recently, PUBLIC brought together 27 world re-known designers and asked them to interpret the concept of “Public” with a vision to reclaim urban spaces for walking, biking and eating. You can buy this poster here.