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:
“I mind how once we lay such a transparent summer morning,
How you settled your head athwart my hips and gently turn’d over
upon me,
And parted the shirt from my bosom-bone, and plunged your tongue to my bare-stript heart,
And reach’d till you felt my beard, and reach’d till you held my
feet.”
—Walt Whitman (1819–1892)
“One of the great natural phenomena is the way in which a tube of toothpaste suddenly empties itself when it hears that you are planning a trip, so that when you come to pack it is just a twisted shell of its former self, with not even a cubic millimeter left to be squeezed out.”
—Robert Benchley (1889–1945)