Patent ID: 7753387

Claim:
A bicycle stepping apparatus having a stepping means located between a sprocket and a crank of a bicycle, comprising: a bar of the bicycle is located in front of the sprocket; the sprocket has an axle to couple with the stepping means; a hole in the bar is configured to pivotally couple with the crank on each of two sides thereof for rotating the crank; the crank has a screw hole on one end to be screwed by a shaft of a pedal; a socket wrench of the stepping means has a hub on one end formed with wrench teeth to house a flywheel; the flywheel has a gear engageable with the hub and an axis coupling on the axle and being fastened through a nut; and the socket wrench has an elongate sliding track on the bottom side of another end to hold a first bearing set of an auxiliary bar which has a steel ring on a bottom end that has two sides coupling respectively with a second bearing which is run through by the shaft of the pedal.