Abstract: This invention provides a combination means for quickly and rigidly securing the foot of an operator to a pedal of a bicycle, or the like. The combination means comprises pedal-gripping means adapted to be secured to the sole of the shoe of an operator, a pedal having a generally prismatic configuration and comprising two polygonal end surfaces and at least three substantially mutually congruent side faces. Each side face having shoe-gripping means formed thereon. One end face of the pedal having means for being, preferably, rotatably connected to a crank. The shoe-gripping means and the pedal-gripping means are mutually lockably interengageable so as not to be disengageable by any normal movement of the foot during pedalling.