Force-saving pair of pressure-die-cast aluminum pedal levers for bicycles of any design has a rotatable linkage on a rigid tread bearing axis

摘要

Two pressure-die-cast aluminum pedal levers carry a hub bearing that has formed on an inner side concave carrier teeth with a circular curved shape at a 120-degree radial symmetry or otherwise as well as a pivot bearing for retaining a rotatable denture clutch.