Bike Spikes by Cesar Van Rongen
Made specifically to ride on snow and ice, the bike spikes of Dutch designer Cesar Van Rongen are the equivalent of snow chains but for bikes. They are made of six flexible parts with embedded spikes as well as a metal wire that runs through them in order to tighten onto the wheel, while remaining easy to put on and off, and to fold. See them in action in the video below. Enjoy!
