Don't think that motorcycle is limited to 2 wheels. There is something else. That is a machine run on 3 wheels. HD calls it - Trike. It gives long-haul 3-wheel comfort. As part of Project Rushmore, the all new 2014 version comes with a new twin-cooled high output Twin Cam 103 engine, rear-to-front linked brakes, new Daymaker LED headlamp and LED fog lamps, new Boom Box 6.5 infotainment system featuring a 6.5 inch full-color touchscreen, more luggage space and a 6 speed cruise drive transmission.