It’s as wide as an SUV but has to be carried across rail tracks. It’s called the Couch Bike. Two guys (one Canadian and the other a Norwegian) rode this contraption across PEI and part of New Brunswick this summer. They were stopped by an RCMP cop who wanted to cite them for traffic violations but let them go cuz they had “a nice rig.” Download the Window Media video of the trip [ 8.3 MB ] or go to their journal of the jounrey.