Training wheels
From Wikipedia, the free encyclopedia
Training wheels, known as stabilizers outside North America,[1][2] are a set of additional wheels attached to the rear wheel of a bicycle, effectively turning it into a tricycle as beginners learn to ride independently.[3] Since the late 1990s, balance bikes have gradually replaced training wheels as a more effective tool for developing a sense of balance.[4][5]
Not to be confused with Train wheel or Trailing wheel.