Patent ID: 8695745
Filing Date: 2014-04-15
Classification: B62M

Abstract:
1. A snowmobile comprising: a chassis including a tunnel, the tunnel having a longitudinal axis; an engine disposed on the chassis; an endless drive track disposed at least in part inside the tunnel and operatively connected to the engine for propulsion of the snowmobile; at least one ski disposed on the frame via a front suspension; a straddle seat disposed on the tunnel above the endless drive track, the straddle seat being disposed rearward of the engine; a rear suspension assembly supporting and tensioning the endless drive track, the rear suspension assembly including: a torsion spring adjuster connected to the at least one suspension arm, the torsion spring adjuster receiving the second end of the at least one torsion spring, the torsion spring adjuster being disposed between the at least one suspension arm and the second end of the at least one torsion spring; and an actuator operatively connected to the torsion spring adjuster, the actuator being located at least partially outside the tunnel, the actuator operating the torsion spring adjuster to move the second end of the at least one torsion spring relative to the first end of the at least one torsion spring.