PURPOSE: To obtain a bicycle handle light in weight further excellent in a vibration absorbing effect by forming the bicycle handle with polyamide resin reinforced by a reinforcing material of continuous fiber and/or long fiber.

CONSTITUTION: A nylon tube, laminating two layers of reinforcing fiber and spirally winding on its innermost and outermost layers a tape of glass fiber paper, is set in a pipe molding metal mold. Melted ω-lactams, containing a polymer catalyst and an initiator, are injected into the metal mold, and a pipe of hollow structure is molded by applying an internal pressure into the tube.