A device for attaching to a ski of a snowmobile includes first and second spaced apart legs. Each leg has a ski engaging portion proximate a second end that is configured to engage a bottom surface of the ski proximate outer edges thereof. The device includes at least one wheel attached to the first and second legs between the first end and the second end and a cross bar that attaches the first and second legs proximate first ends thereof. The device includes a lever arm extending from the cross bar between the first and second legs wherein the lever arm is configured to be angularly positionable relative to the first and second spaced apart legs. A handle is attached to a distal end of the lever arm and has a surface configured to engage a tip end or a ski handle of the ski. The device includes a retaining member attached to the handle that is configured to engage the ski handle, wherein when the ski engaging portions engage a bottom surface of the ski and the retaining member engages the ski handle, the ski is elevated and the at least one wheel engages the ground surface such that the skis do not contact the ground surface as the snowmobile is moved.

A jet-powered sled has a body having a control cockpit with control apparatus for an operator to control the jet sled, a set of surface runners adapted to engage a surface upon which the sled is operated, the surface runners removably engaged to spindles coupled to swing arms coupled to the jet sled, and an engine compartment having a jet engine removably mounted in a manner to direct thrust to a rear of the jet sled to propel the jet sled. The jet sled is characterized in that the sled may be adapted specifically to run on water, ice or snow by installing runners adapted for water, ice or snow on the spindles of the swing arms.

A system and method for mounting one or more accessories to a vehicle with forks is disclosed. The system can include a frame comprising mounting plates, the mounting plates including at least an axle hole and a fork stop hole. The frame can also include frame rails to connect the mounting plate to an accessory mount. The system can be mounted to the forks of the vehicle using the axle hole and an axle. A fork stop can be placed in the fork stop hole and can include one or more interface points to fit the bottom of the forks. The fork stop can transmit forces from the accessory to the forks in a linear manner and to a location where the forks have additional strength. The fork stop can be designed such that it bends in response to an impact rather than breaking the forks.

A snowmobile footrest adapted to be disposed on a side of a snowmobile tunnel includes a plurality of interconnected ribs. At least one first rib extending in a first direction includes an upper first rib surface and a lower first rib surface defining a first rib height therebetween. A pair of vertical first rib surfaces, extending generally in a vertical direction between the upper and lower first rib surfaces, define a first rib thickness therebetween. The first rib height is greater than the first rib thickness. At least one second rib is connected to the at least one first rib. Each second rib extends in a second direction, the second direction being at an angle with respect to the first direction. The at least one first rib and the at least one second rib define at least one space therebetween. Snowmobiles having the footrests are also disclosed.

Traction systems for snowmobile skis producing traction on snow and ice covered surfaces; consisting a pair of snowmobile skis each having an assembly of parts; driven by an hydraulic rotor that pivots the skis, adjusting their position when cornering, providing traction, according to a snowmobile steering system . And is powered and controlled by at least one of: hydraulic steering system, an electro-hydraulic steering system; an electric power steering system using an electric motor instead of hydraulic rotor.

The present specification relates to a snowmobile. The upper arm includes two proximal portions connected to the vehicle frame and the upper arm extends outwardly from the two proximal portions in the vehicle width direction and the upper arm is connected to the knuckle. The two proximal portions are rotatable so that the knuckle and the skis can move up and down relative to the vehicle frame. The axis Ax2, passing through the rotation center C2 of the two proximal portions of the upper arm, goes through a position of the rotation center of the secondary shaft or through a position above the rotation center of the secondary shaft. This structure can reduce the force acting on the vehicle body frame via the upper arm and prevent an increase in the force.

Various embodiments of a snowmobile are disclosed. The lower arm is arranged below the upper arm. The lower arm includes proximal portions and connected to the ski support frame. The lower arm extends outwardly from the proximal portions and in the vehicle width direction and connects the ski support frame and the ski. The proximal portions and of the lower arm are positioned higher than the lower end of the engine. At least a portion of the lower arm is positioned higher than the rotational center of the crank shaft. This structure can prevent the center of gravity of the vehicle body from becoming high and reduce running resistance when the vehicle traveling in deep snow.

This specification relates to a snowmobile. Each of the right suspension and the left suspension includes a damper capable of expanding and contracting according to the vertical movement of the lower arm and a spring that exerts spring force in the expansion/contraction direction of the damper. The cylinder of the right damper and the cylinder of the left damper are connected to each other through a hydraulic fluid channel so that the hydraulic fluid flows between the cylinder of the right damper and the cylinder of the left damper. This snowmobile can reduce the difference in contact pressure on snow surface between the left ski and the right ski, when the vehicle turns.

A motorized vehicle includes a front part equipped with at least one steering skid intended to be steered by a handlebar, a rear part including a chassis rigidly attached to a tracked propulsion means and driven by a transmission mechanism configured to be powered by a motor. The motorized vehicle is configured such that the motor is housed inside a wheel of the transmission mechanism forming a drive wheel of the propulsion means called a motor wheel. The propulsion means being supported by a bogie comprising an upper bogie rigidly attached to the chassis and a lower bogie, connected together by a suspension mechanism. The lower bogie is articulated with respect to the upper bogie. The motor wheel is rigidly attached to the lower bogie at the rear thereof.

The present invention provides a ski assembly (39) for mounting on a front wheel hub unit (40) of a wheel-drive vehicle, wherein the wheel hub unit comprises a brake caliper bracket fastened to a bracket mount on the hub unit by caliper mounting bolts, the ski assembly comprises a ski element (42) and a fastening assembly, wherein the fastening assembly comprises an arm (43) having a first end (44) and a second end (45), the first end is pivotably connected to the ski element (42) around a pivot axis being transverse to the longitudinal direction of the ski element and the second end (45) comprises a ski fastening bracket (46) comprising at least two mounting bolt holes (47) arrangeable at positions corresponding to the positions of the caliper mounting bolts, such that the second end may be rigidly connected to the bracket mount.