Patent ID: 7017444

Claim:
A bicycle pedal crank assembly comprising a crank including a fixed axle having a first end adapted to be connected to the wheel of a bicycle, an opposite end with a hollow bore, a guide axle having a connecting section adapted to be received and telescoped within said hollow bore of said fixed axle, a guide section with a rectangular cross section, and a threaded section with a circular cross section intermediate said connecting section and said guide section, a slider movably mounted on said guide axle for translation along at least a length of said guide section, a pedal rotatably mounted on said slider, a nut threaded onto said threaded section of said guide axle, a stop mounted at an end of the guide section of said guide axle distal from said threaded section, said slider being movable between said stop and said nut for changing the ratio of gyration of said pedal.