Most bicycles, tricycles and motorcycles have a tubular frame. The front fork (which holds the front wheel) pivots within the head tube . On a motorcycle, the "head tube" is normally called the steering head. On a bicycle the head badge is invariably mounted on the head tube.
Read more about Head Tube: Bearings, Castor Angle, Head Tube Diameters
Famous quotes containing the words head and/or tube:
“Never, my dear Sir, do you take it into your head that I do not love you; you may settle yourself in full confidence both of my love and my esteem; I love you as a kind man, I value you as a worthy man, and hope in time to reverence you as a man of exemplary piety.”
—Samuel Johnson (1709–1784)
“Even crushed against his brother in the Tube the average Englishman pretends desperately that he is alone.”
—Germaine Greer (b. 1939)