Abstract: A head tube for a bicycle frame that accommodates oversized frame tubing and the use of a standard sized head set. Preferably, the head tube includes a body defining a pair of lateral extensions that cooperate with the body to define an outer surface configured to receive at least a portion of a frame tube. In addition, preferably, the head tube defines a wall thickness that is thicker at the bottom of the head tube than the thickness at the top of the head tube. In addition, preferably, the wall thickness is greater at both of the top and the bottom of the head tube than the wall thickness of the middle of the head tube. Preferably, in at least a portion of the head tube, the wall thickness is thicker in a forward side than the thickness in a rearward side.