Patent attributes
A suspension assembly adapted for use in a snowmobile having a closed-loop track includes at least one ground contact engaged with the closed-loop track. An elongated swing arm is angularly disposed in the closed-loop track and extends between a front end portion adapted to be coupled to the chassis, and a rear end portion coupled to the at least one ground contact. A front resilient member is disposed in the closed-loop track and has an upper end pivotably coupled to the front end portion of the swing arm, and a lower end pivotably coupled to the at least one ground contact. A rear resilient member is disposed in the closed-loop track and has an upper end adapted to be pivotally coupled to the chassis, and a lower end pivotally coupled to the at least one ground contact. A pivot arrangement is connected to the swing arm for permitting at least rotation of the swing arm about a pivot axis extending longitudinally of the at least one ground contact. The pivot arrangement includes an arrangement for restricting and/or preventing rotation of the swing arm.