A damper includes a piston that carries a relatively compact control valve for controlling fluid flow through the piston. A stacked lens submodule disposed with at least one first alignment fixture is used as a molding insert to be set into a mold arranged with a second alignment fixture where the first alignment fixture connects with the second alignment fixture correspondingly. A forward portion of the passenger seat includes a bottom surface contoured to fit over and be supported by at least a portion of a rearward end of the rider seat when the passenger seat is attached to the snowmobile. The struts include at least one sliding assembly for locking the stent body in the deployed configuration. Depositing a second portion of the film includes maintaining the ratio of the : substantially constant throughout deposition of the bulk layer and regulating the chamber to a pressure in a range from about 200 torr to about 760 torr throughout deposition of the bulk layer.