Arm lever for an exercise bicycle

An arm lever for an exercise bicycle which includes a frame, a drive shaft mounted rotatably on a rear end portion of the frame, and a crank arm with a first end connected eccentrically to one end of the drive shaft and a second end, said arm lever having a top end, a bottom end and an intermediate pivot portion between said top and bottom ends, said pivot portion being adapted to be mounted pivotally on a front end portion of the frame, said bottom end being adapted to be connected to the second end of the crank arm, wherein the improvement comprises:

• said bottom end of said arm lever being provided with a locking plate, said locking plate having a forked extension with a distal bottom end and an upright slit which opens from said distal bottom end, said forked extension being further formed with a plurality of spaced locking holes which extend through said slit, said slit being adapted to permit extension of the second end of the crank arm therein, said forked extension being adapted to be connected to the second end of the crank arm at a selected one of said locking holes to vary distance of the second end of the crank arm from said pivot portion and vary correspondingly range of pivoting movement of said arm lever.