Snowmobile having a continuously variable transmission

A snowmobile comprising:

• a frame including a tunnel;
• a driver seat supported by the frame;
• a rear suspension assembly connected to the frame, the rear suspension assembly being disposed at least partly beneath the tunnel;
• an endless track supported by the rear suspension assembly;
• a motor supported by the frame, the motor being operatively connected to the endless track for propulsion of the snowmobile;
• a drive shaft driven by the motor,
• a driven shaft operatively connected to the endless track;
• and
• a continuously variable transmission (CVT) operatively connecting the drive shaft to the endless track, the CVT comprising:
• a drive pulley mounted to the drive shaft, the drive pulley being operatively connected to the motor via the drive shaft;
• a driven pulley mounted to the driven shaft, the driven shaft operatively connecting the driven pulley to the endless track;
• a belt operatively connecting the drive pulley to the driven pulley;
• and
• a CVT housing enclosing the drive pulley, the driven pulley and the belt, the CVT housing having a rigid mounting portion connected to the frame and to the motor.