The present invention relates to a freewheel adjustable wheel and an exercise bicycle including the same and. More specifically, may comprise a rotation gear part which rotates together with a pulley fixed to the outer side thereof and has a circular gear ...

The motor vehicle, particularly passenger cars for use with a training device, has a drive motor (1) which transfers a drive power for driving of drive wheels (2). A control device (5) is arranged, which is operated by the driver of a motor vehicle. The co...