To provide a pedal for a bicycle equipped with a pedal shaft with inner end put in screw engagement with a crank, a rotary frame having a pipe part fitted rotatably on the pedal shaft through bearings, and a cap to block the outside open end of the pipe part, unlikely to be broken even if a thrust direction load is applied to the pedal.

The length in the axial direction of the pedal shaft 1 is set so that the rear surface 36 of the cap 3 approximately contact with the outer end face 1b of the pedal shaft 1 when mounting of the cap 3 is completed.