Power plant for prime mover-equipped bicycles

摘要

A power plant for prime mover-equipped bicycles wherein a bicycle running and engine running can be changed over to each other. The running speed can be changed over to a low speed and high speed. The power transmitting system, including the speed changing mechanism, can be made simple and compact in structure, and a jointless change having no neutral position in the speed changing operation is possible. It is further possible to feed and interrupt the fuel and to switch the current source on and off with the jointless change.