Abstract: A swing arm for a snowmobile has an upwardly curved, stepped, or angled intermediate portion that increases the swing arm's ground clearance relative to conventional, straight swing arms. The increased ground clearance permits more snow and other elements to pass underneath the swing without contacting the swing arm.

Abstract: A novel mountain snowmobile comprises a frame, an engine disposed on the frame, at least one ski disposed on the frame, a seat disposed on the frame, a steering device disposed on the frame forward of the seat that is operatively connected to the at least one ski for steering the snowmobile, and a novel long length drive track disposed below the frame and connected operatively to the engine for propulsion of the snowmobile. The novel drive track comprises an endless body having a ground-engaging outer surface with a central portion flanked by first and second lateral portions, a plurality of longitudinally spaced reinforcing rods disposed in the body along a transverse direction of the body. The rods define a plurality of pitches, and a plurality of profiles project from the outer surface of the body along the plurality of pitches. A plurality of non-profile regions is defined along the plurality of pitches, and the profiles and profile-free regions define a pattern for each pitch.

Abstract: A windshield assembly includes a windshield panel movable between an operative position and an inoperative position, and a coupling assembly coupled to the windshield panel, the coupling assembly including at least one coupling member that enables the windshield panel to move, e.g., between the operative position and the inoperative position. The coupling assembly may include a first end defining a mounting bracket and a second end defining a pivot point about which the windshield panel pivots. An inoperative position may be when the windshield panel is moved forwardly or rearwardly, e.g., approximately 90°. The windshield panel may be configured out of polycarbonate plastic. The windshield assembly may further include a handguard element connected to the windshield panel.