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.

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.

Embodiments of the present disclosure describe a spindle for a recreational vehicle, such as a snowmobile, an all-terrain vehicle (ATV), or a side-by-side vehicle. The spindle includes a spine, optionally a front fin that extends from a front surface of the spine, and optionally a rear fin that extends from a back surface of the spine.

Embodiments of the present disclosure describe a spindle for a recreational vehicle, such as a snowmobile, an all-terrain vehicle (ATV), or a side-by-side vehicle. The spindle includes a spine, optionally a front fin that extends from a front surface of the spine, and optionally a rear fin that extends from a back surface of the spine.

The present invention is directed to a single-ski assembly being configured to convert a double-ski conventional snowmobile to a single-ski snowmobile while improving the steerability, the maneuverability and the floatation of snowmobiles and thus by providing an adjustable angular front orientation of the ski. The single-ski assembly comprises a damping system adapted to control the longitudinal direction of the snowmobile and a steering mechanism adapted to control the upward and downward rotation of the ski.

The present invention is directed to a single-ski assembly being configured to convert a double-ski conventional snowmobile to a single-ski snowmobile while improving the steerability, the maneuverability and the floatation of snowmobiles and thus by providing an adjustable angular front orientation of the ski. The single-ski assembly comprises a damping system adapted to control the longitudinal direction of the snowmobile and a steering mechanism adapted to control the upward and downward rotation of the ski.

A ski assembly for a bicycle includes a mounting frame with a mounting aperture therein and a wheel axle that is received through the mounting aperture of the mounting frame and extends through one of the wheels of the bicycle to mount the wheel relative to the bicycle while supporting the mounting frame in part relative to the bicycle. Two ski members are pivotally supported on respective support arms that are movable relative to the mounting frame by a biasing member that urges the ski member downwardly. The biasing member can be adjusted relative to the mounting frame between a working position in which the ski members are arranged to engage the ground at opposing sides of the wheel of the bicycle and a stored position in which the ski members are supported in raised elevation and out-of-use relative to the working position.

A front fork assembly of a snow bike is disclosed having left and right legs, each having an upper leg portion and a lower leg portion. The left leg upper and lower leg portions are linearly movable relative to each other. A right leg has an upper leg portion and a lower leg portion, the right leg upper and lower leg portions are linearly movable relative to each other. A ski mount has a lower end for coupling to a ski and an upper end for coupling to the left and right leg. A linear force element is coupled to the left and right legs with a first end adjacent the first ends of the forks and seconds ends coupled to the ski, the linear force element has a different linear force characteristic than the left and right legs.

A front fork assembly of a snow bike is disclosed having left and right legs, each having an upper leg portion and a lower leg portion. The left leg upper and lower leg portions are linearly movable relative to each other. A right leg has an upper leg portion and a lower leg portion, the right leg upper and lower leg portions are linearly movable relative to each other. A ski mount has a lower end for coupling to a ski and an upper end for coupling to the left and right leg. A linear force element is coupled to the left and right legs with a first end adjacent the first ends of the forks and seconds ends coupled to the ski, the linear force element has a different linear force characteristic than the left and right legs.

An improved snowmobile ski dampener for dampening articulation between a steering spindle and a snowmobile ski. The ski dampener may be constructed of an elastomeric material and include one or more progressive surfaces that progressively come in contact with a base surface of the steering spindle as progressively increased compressive loads are applied between the steering spindle and snowmobile ski. As the progressive surfaces come in contact with the base surface, the shape factor of the ski dampener may change (e.g., increase), reducing compressive strain for a given compressive stress. Various design and material characteristics including width, shape of the progressive surface, and durometer and bulk modulus of the elastomeric material may be selected to provide various performance characteristics such as dampening effect, impact absorption, approach angle, initial flex force, and service life.