Abstract: A drive track system for a snowmobile includes a slide rail having a forward section and an aft section. The aft section of the slide rail has a monolithic construction and defines an aftmost wheel station, a second-to-aftmost wheel station forward of the aftmost wheel station and a clearance notch that is at least partially disposed between the aftmost wheel station and the second-to-aftmost wheel station in a longitudinal direction of the slide rail. An aftmost wheel is rotatably coupled to the slide rail at the aftmost wheel station. A second-to-aftmost wheel is rotatably coupled to the slide rail at the second-to-aftmost wheel station. A drive track has a path of travel between the aftmost wheel and the second-to-aftmost wheel such that the drive track and the slide rail form a gap therebetween at the path of travel.

Abstract: A seat adapter for a vehicle includes a base portion, a channel, and a dovetail portion. The channel extends across a width of the seat adapter and is configured to receive a seat frame. The dovetail portion extends rearward from a distal end of the seat frame. The dovetail portion is configured to increase a total seat length.

Abstract: A fuel tank and a seat assembly including the fuel tank is provided. The seat assembly includes a fuel tank, a seat frame securable to the fuel tank, and optionally a rear panel that supports a rearward portion of the seat frame. The seat assembly may define a chamber between the fuel tank and the rear panel. The seat frame is removably secured to one or both of the rear panel and the fuel tank. The fuel tank and rear panel may define a v-shape capable of distributing the rider load.

Abstract: Embodiments of the present disclosure describe a spindle for a recreational vehicle, such as a snowmobile, an all-terrain vehicle (ATV), or a side-by-side vehicle. The spindle includes a spine, optionally a front fin that extends from a front surface of the spine, and optionally a rear fin that extends from a back surface of the spine.