Pedal

noun
  1. A lever pressed by the foot in the operation of a machine, vehicle, musical instrument, etc. noun
    She pressed the pedal to accelerate the car.
    The piano's sustain pedal allows the notes to resonate longer.
  2. To operate a bicycle or other vehicle by pushing the pedals with the feet. verb
    He pedaled furiously to catch up with his friends.
    She enjoys pedaling through the countryside on weekends.