A riding device includes a crank device rotatably attached to a base, and a rider support supported on a carrier and movable relative to the base for supporting a rider, the carrier has a front portion pivotally coupled to the base and a rear portion coupled to the cranks for moving cyclically relative to the base and for allowing the carrier to be moved in an elliptical and reciprocating action relative to the base by the crank device, and a motor or motorized rotating device for rotating the crank device relative to the base in the cyclic and reciprocating action to actuate the carrier and the rider support to move relative to the base in an elliptical and reciprocating action.