Icebike-515X270
Over in the MAKE forums Bf5man put together a nice collection of ice bikes – “There’s some challenges as biking on ice or snow that just call for creative solutions. I was looking for some pictures of bikes with rear tracks and here’s some funny bikes i’ve came across. It might inspire some makers! The oldest one i’ve found is from 1885, the pedal system is simple but functionnal…”Link.