An ATV (2) is disclosed having a frame and a plurality of wheels (6, 8). A power train is defined by an engine, transmission and front and rear final drives. The transmission may include a CVT (600), which includes a cooling system (1022) to cool the interior of the CVT. The cooling system include a fan positioned on the driven clutch causing a reverse suction air flow, back through the drive clutch, with the air exhausting at the front of the engine (200).