An adjustable fairing for a motorcycle has a fairing body, a pivot assembly for mounting the fairing body on the vehicle, and an adjustment knob operative on the pivoting assembly for adjusting the angle of the fairing body while the motorcycle is in operation. , the shell having a Tg of 80-150\xb0 C. These techniques include optimization of diffraction efficiency, i. A second end cap is connected to a second end of the mandrel. The media holder holds media that may be printed on by the printer assembly.