An apparatus for adapting a single-track vehicle for use on a chairlift is provided. A first adapter portion may be configured to be removably coupled to at least a portion of a single-track vehicle. A second adapter portion may be pivotably coupled to the first adapter portion. A space formed between the first adapter portion and the second adapter portion may be configured to receive at least a portion of a chairlift seat of a chairlift.

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.

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.

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 trailer system for transporting multiple adult passengers and/or supplies over harsh terrain (e.g., snow, ice, wetland, etc.) when towed behind a vehicle. The trailer system includes a cabin, first and second skis, and first and second suspension assemblies. The suspension assemblies connect the skis, respectively, with the cabin. The suspension assemblies incorporate multiple pivot points that effectively isolate the skis from cabin, and promote true tracking of the trailer system relative to the towing vehicle. In some embodiments, the cabin has a highly buoyant construction, allowing the trailer system to float in water.

A trailer system for transporting multiple adult passengers and/or supplies over harsh terrain (e.g., snow, ice, wetland, etc.) when towed behind a vehicle. The trailer system includes a cabin, first and second skis, and first and second suspension assemblies. The suspension assemblies connect the skis, respectively, with the cabin. The suspension assemblies incorporate multiple pivot points that effectively isolate the skis from cabin, and promote true tracking of the trailer system relative to the towing vehicle. In some embodiments, the cabin has a highly buoyant construction, allowing the trailer system to float in water.

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.