A shock absorber includes a cylinder and a piston. The piston is configured to partition an internal space of the cylinder into two oil chambers and is capable of sliding in an axial direction of the cylinder. The piston having formed therethrough a communication path configured to bring the two oil chambers into communication with each other. The shock absorber also includes a first rod and a second rod. The first rod extends in a first direction of the axial direction with respect to the piston. The second rod has a diameter larger than a diameter of the first rod, and extends in a second direction of the axial direction, which is opposite to the first direction, with respect to the piston. The shock absorber further includes a rod mounting member, which is provided on the first rod, and a cylinder mounting member, which is provided on the cylinder and arranged as offset from an axis of the cylinder.

Provided is a suspension system capable of expanding one of an oil chamber and a gas chamber of an intermediate unit and contracting the other when a damper compresses or expands without generating friction in the intermediate unit. An intermediate unit includes an intermediate case having an intermediate oil chamber connected to an oil chamber of a right damper and the oil chamber of a left damper and an intermediate gas chamber, and a diaphragm made of a flexible material, which partitions the intermediate oil chamber and the intermediate gas chamber.

In a suspension system in which the oil chambers of two dampers are connected, the responsiveness of the dampers can be adjusted. A suspension system has a left damper, a right damper, and an intermediate unit. A case of the intermediate unit has an intermediate oil chamber connected to an oil chamber of the left damper and the oil chamber of the right damper and an intermediate gas chamber. The intermediate oil chamber and the intermediate gas chamber are partitioned by a diaphragm. The intermediate unit has a capacity adjustment mechanism including a movable portion of which the position can be changed. The capacity adjustment mechanism adjusts the capacity of the intermediate gas chamber by changing the position of the movable portion.

A giant six-legged polar research vehicle with tracked feet, including a platform, six legs arranged at six ends of the platform and six tracked feet arranged below the six legs. A monitoring device is arranged on a top cover. Six power compartments each having a steering device are arranged at six ends of a chassis in the platform. Each leg includes a main traveling device with an upper end and a lower end respectively connected to the steering device and a tracked foot, an auxiliary traveling device with an upper end and a lower end respectively connected to the chassis and the main traveling device, and a connecting device arranged on the main traveling device. The tracked foot includes a main flipping mechanism, an auxiliary flipping mechanism, a tracked foot slewing device, a crawler, a sliding plate and a suspension.

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.

A track kit for a vehicle (2), having two track assemblies (1, 1), each track assembly having an endless track (5), a front idler wheel (8), an intermediate support member (6) with at least one track engaging element (7), a rear idler wheel (9), a drive wheel (10), at least one swing arm (11, 12) and a shock absorber connecting assembly (13, 14), wherein the endless track (5) has an external side featuring ground lugs (15) for ground engagement and an internal side featuring drive lugs (16) for engagement with the drive wheel (10), and the internal side is circumferentially trained around and in contact with the front idler wheel (8).

A hydraulic system includes a hydraulic pump. A first hydraulic shock is coupled to a first port of the hydraulic pump. A second hydraulic shock is coupled to a second port of the hydraulic pump. A first hydraulic cylinder is coupled to the first port of the hydraulic pump. A second hydraulic cylinder is coupled to the second port of the hydraulic pump. A first valve is coupled between the first hydraulic cylinder and second hydraulic cylinder. The first valve can be actuated by a computer system or can be a ball and spring check valve. A second valve is coupled between the first hydraulic cylinder and second hydraulic cylinder. A flow direction of the second valve is opposite a flow direction of the first valve. A first piston is disposed in the first hydraulic cylinder, and a second piston is disposed in the second hydraulic cylinder.

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 vehicle comprises a chassis, a seat, an endless drive track, a rear suspension assembly with at least one slide rail and a substantially inextensible limiter strap extending between the chassis and the at least one slide rail, to limit separation between the at least one slide rail and the chassis. The strap holder is moveable between a first holder position and a second holder position, a position of the end of the limiter strap being different in the first strap holder position compared to the second strap holder position. A control cable is operatively connects the strap holder to a strap adjustment actuator. The strap adjustment actuator is disposed forward of the seat and is operable by a user during operation of the vehicle, the strap adjustment actuator being movable between first and second positions related to the positions of the strap holder.

A snowmobile has a frame having a motor module, a tunnel connected to the motor module, a suspension module connected to the motor module, a motor, a handlebar, a ski operatively connected to the handlebar and a front suspension assembly operatively connecting the ski to the suspension module and to the motor module. The front suspension assembly has a suspension arm having a proximal end positioned longitudinally between the motor module and the suspension module. The proximal end pivots about a pivot axis extending through an interior portion of the suspension module. A proximal fastener passes through the proximal end of the suspension arm and extends from the interior portion of the suspension module to the motor module. The proximal fastener thereby pivotally connects the suspension arm to the suspension module and to the motor module about the pivot axis.