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A bicycle component part that can be installed on any conventional bicycle. With only two gear shifting strokes involved, the biker can pedal in six different pedaling strokes. With the gear in NORMAL POSITION one can pedal the bike in the conventional circular pedaling mode. Shifting the gear to MULTI-FUNCTION will enable the biker to pedal in five different innovative pedaling strokes, including one that closely resembles a person's natural walking and running/jogging motions (ideal for people 50 years old and over). This natural motion technology (NMT) promotes greater distance traveled per pedal stroke,