The vehicle includes: a chassis which includes a front cross-member and a rear cross-member; a nacelle receiving a person or a load, pivotally mounted relative to the central part of the cross-members about a substantially longitudinal hinge axis, the center of gravity of the nacelle being situated below said hinge axis; a front train and a rear train, each including two movement supports on the ground, each movement support being connected to the end part of the corresponding cross-member by a connecting system; the cross-members, situated in the upper part of the nacelle, being separate pieces linked together only by the nacelle, via the hinge axis, so as to be able to pivot about the hinge axis independently of one another.

A wheelie control suspension system for snowmobiles is provided. The wheelie control suspension system may include at least one spring preload apparatus and at least one dampening apparatus. The wheelie control suspension system may operate to change the spring force or damping force of the front track shock and rear track shock at the switch of a knob or activation of an electronic button.

A damping control system for a vehicle having a suspension located between a plurality of ground engaging members and a vehicle frame includes at least one adjustable shock absorber having an adjustable damping characteristic. The system also includes a controller coupled to each adjustable shock absorber to adjust the damping characteristic of each adjustable shock absorber, and a user interface coupled to the controller and accessible to a driver of the vehicle. The user interface includes at least one user input to permit manual adjustment of the damping characteristic of the at least one adjustable shock absorber during operation of the vehicle. Vehicle sensors are also be coupled to the controller to adjust the damping characteristic of the at least one adjustable shock absorber based vehicle conditions determined by sensor output signals.

An remote electronic shock adjuster is disclosed. The shock assembly with the electronic shock adjuster includes an electronic valve, the electronic valve configured to adjust a compression stiffness of the shock assembly. A switch is communicatively coupled with the electronic valve and configured to provide a signal to the electronic valve to lockout the shock assembly or return the shock assembly to a pre-lockout configuration.

A shock assembly with automatically adjustable ride height. The shock assembly includes a main chamber with a working fluid therein. A damping piston coupled to a piston shaft, the damping piston disposed in the main chamber to divide the main chamber into a compression side fluid chamber and a rebound side fluid chamber. An automatic ride height adjustment assembly including an internal floating piston (IFP) pump assembly and a spring preload piston assembly.

A snowmobile including a right front suspension assembly and a left front suspension assembly, each of the left and right front suspension assembly including: a ski leg; an upper A-arm and a lower A-arm, the upper and lower A-arms being connected between the ski leg and the chassis; and a shock absorber connected between one of the upper and lower A-arms and the chassis; a first sensor connected between one of the upper and lower A-arms of the right front suspension assembly and the chassis to measure the angle therebetween; a second sensor connected between one of the upper and lower A-arms of the left front suspension assembly and the chassis to measure the angle therebetween; and a controller communicatively connected to the first sensor and the second sensor, the electronic signals representing angular position between the A-arms of the right and left front suspension assembly and the chassis.

A damping control system for a vehicle having a suspension located between a plurality of ground engaging members and a vehicle frame includes at least one adjustable shock absorber having an adjustable damping profile.

A damping control system for a vehicle having a suspension located between a plurality of ground engaging members and a vehicle frame includes at least one adjustable shock absorber having an adjustable damping profile.

A damping control system is provided for an off-road recreational vehicles having a suspension located between a ground engaging member and a vehicle frame and including at least one adjustable shock absorber having an adjustable damping characteristic based on an input from a sensor.

A damping control system for a vehicle having a suspension located between a plurality of ground engaging members and a vehicle frame are disclosed. The vehicle including at least one adjustable shock absorber having an adjustable damping characteristic.