A personal transportation device having first and second elongated foot support member that are arranged substantially in parallel and approximate to some extent the experience of skiing. The lateral distance of the foot support members may be adjusted. Biased-direction caster wheels may be provided that permit propulsion from side to side movement as well as kicking off and other propulsion techniques. Tiltable steering assemblies are disclosed that may impart a tilting of a front wheel to achieve turning. Various embodiments are disclosed.

A wheeled ski is disclosed that may include a flexible member. The wheeled ski may also include a first wheel assembly that includes a first wheel with a first-wheel first rotational axis and a first-wheel second rotational axis. The first-wheel first rotational axis and the second-wheel second rotational axis may intersect. The wheeled ski may also include a second wheel assembly that includes a second wheel with a second-wheel first rotational axis and a second-wheel second rotational axis. The second-wheel first rotational axis and the second-wheel second rotational axis may intersect. The first wheel assembly may further include a first axle coupled with the flexible member and a first rod that extends through the first axle. The second wheel assembly may further include a second axle coupled with the flexible member and a second rod that extends through the second axle.

A side-by-side pair of platforms, each equipped with a foot-pad, are coupled in a manner to form a vehicle, and are supported (a) at the rear by a truck-mount under each platform, integrated with a shared axle assembly fitted at its ends with a pair of rear wheels, located at opposite sides of the vehicle, and (b) at the front by a tilt-turn mount system including at least one front wheel, typically a caster-mounted roller, accomplishing dual-platform tilt-turning in response to the user's body movements simulating superior snow-skiing techniques, thus enabling sustained self-propulsion by user body movements and providing recreation, training and practice for skiers of all ages and skill levels.

A stand-on land vehicle, for simulating snow skiing, features a side-by-side pair of platforms, coupled and supported (a) at the rear by an angled tilt-turn mount under each, integrated with a shared axle assembly fitted at its ends with a pair of rear wheels, located at opposite sides of the vehicle, and (b) at the front by a tilt-turn mount system including a strut/spacer framework attached to a pair of user handling bars, and to at least one front wheel, typically a roller, via an associated inclined swivel-caster type mount assembly. This novel combination accomplishes dual-platform tilt-turning in response to the user's body movements that simulates the superior snow-skiing technique of skewing the skis longitudinally for banked turns as in zig-zagging downhill. The invention actually enables sustained self-propulsion, zig-zagging on level concrete and paved surfaces, powered only by user body movements during turns and enhanced by low-friction roller-wheels for free-wheeling coasting on straight runs, and is thus capable of providing, on dry land, both recreational pleasure and highly effective training and practice for snow-skiing for snow skiers of all ages and skill levels.

A summer style ski having three different types of wheels aligned to allow the ski to travel on non-snow or ice surfaces and to create the feel of carving or turning on a paved surface.

A shock absorber system according to the present invention is connectable to a shaft (16) supporting a roller ski wheel (13), wherein a circular shaped rubber or rubber like material (10) is arranged around a centered position (11) of a wheel support (14) supporting an end part of the shaft (16) supporting the roller ski wheel (13).

The present invention is related to a roller ski with an adapted shock absorber device arrangeable inside a hollow backend of the roller ski body (16), wherein a first member (11) of the shock absorber device is supporting a backend wheel of the roller ski, a second member (14) is attachable to an inside surface of the hollow backend of the roller ski body (16), wherein a material strip (13) of a stretchable and compressible material is arranged in between the first and second member (11, 14).