A ski for use on ice or snow is disclosed. The ski includes a ski body having a tip portion, a tail portion, and a longitudinal running length extending between the tip portion and the tail portion and a substantially flat bottom surface for sliding on snow or ice. The ski also includes a suspension system comprised of a substantially rigid support structure secured to the longitudinally central region of the said ski body at two attachment locations separated by a distance of at least 5 inches along the longitudinal axis of the ski body, and at least one resilient element configured to exert an opposing force between the support structure and the ski body in the area between the two attachment locations.

A sports board comprises, at a minimum, a top layer, a bottom layer, and a core in between them. A structural element with puzzle piece shape fits into a correspondingly shaped seat formed by the core, in between the top and bottom layers. The shape of the structural element prevents the structural element from being dislodged by shock forces frequently associated with use of the board. Machined or molded features are provided that penetrate or partially penetrate the structural element. These features, which are filled or included with resin, adhesive or another chemical bonding agent, resist horizontal shearing between the structural element, the core, and the top and bottom layers. A leading portion of the structural element protrudes out from in between the top and bottom layers, forming a bumper that acts as the first point of contact between the board and the ground or an obstacle.

A sports board comprises, at a minimum, a top layer, a bottom layer, and a core in between them. A structural element with puzzle piece shape fits into a correspondingly shaped seat formed by the core, in between the top and bottom layers. The shape of the structural element prevents the structural element from being dislodged by shock forces frequently associated with use of the board. Machined or molded features are provided that penetrate or partially penetrate the structural element. These features, which are filled or included with resin, adhesive or another chemical bonding agent, resist horizontal shearing between the structural element, the core, and the top and bottom layers. A leading portion of the structural element protrudes out from in between the top and bottom layers, forming a bumper that acts as the first point of contact between the board and the ground or an obstacle.

A snowmobile ski tip is configured to be removably fitted over a snowmobile ski and has a bottom surface for contacting the snow and a top surface configured to contact a bottom surface of the ski, a side wall, and a top wall extending from the side wall. The ski tip forms a pocket configured to accept a front end of the snowmobile ski such that the ski tip widens at least the front end of the ski when installed.

A ski for use on ice or snow is disclosed. The ski includes a ski body having a tip portion, a tail portion, and a longitudinal running length extending between the tip portion and the tail portion and a substantially flat bottom surface for sliding on snow or ice. The ski also includes a suspension system comprised of a substantially rigid support structure secured to the longitudinally central region of the said ski body at two attachment locations separated by a distance of at least 5 inches along the longitudinal axis of the ski body, and at least one resilient element configured to exert an opposing force between the support structure and the ski body in the area between the two attachment locations.

A ski for use on ice or snow is disclosed. The ski includes a ski body having a tip portion, a tail portion, and a longitudinal running length extending between the tip portion and the tail portion and a substantially flat bottom surface for sliding on snow or ice. The ski also includes a suspension system comprised of a substantially rigid support structure secured to the longitudinally central region of the said ski body at two attachment locations separated by a distance of at least 5 inches along the longitudinal axis of the ski body, and at least one resilient element configured to exert an opposing force between the support structure and the ski body in the area between the two attachment locations.

A snow riding implement includes a top face, a bottom face, a tail portion, a tip portion, and a midportion. A core of a first material extends from the tail portion to the tip portion. A sidewall extends between the top face and the bottom face and is formed from a second material different than the first material. The sidewall has a first side portion, a second portion and a third portion. The first side portion extends along the midportion at a first angle oblique to the bottom face, wherein the first side undercuts core. The second side portion extends along the tail portion at a second angle, different than the first angle, relative to the bottom face. The third side portion extends along the tip portion at a third angle different than the first angle relative to the bottom face.

A snow riding implement includes a top face, a bottom face, a tail portion, a tip portion, and a midportion. A core of a first material extends from the tail portion to the tip portion. A sidewall extends between the top face and the bottom face and is formed from a second material different than the first material. The sidewall has a first side portion, a second portion and a third portion. The first side portion extends along the midportion at a first angle oblique to the bottom face, wherein the first side undercuts core. The second side portion extends along the tail portion at a second angle, different than the first angle, relative to the bottom face. The third side portion extends along the tip portion at a third angle different than the first angle relative to the bottom face.

The present invention relates to an alpine ski including a tip zone located at the front of the ski, a waist zone, and a tail zone located at the rear of the ski, a median longitudinal plane extending from the front end to the rear end of the ski, an underside formed by a gliding sole bordered by edges, a zone for mounting a boot. The alpine ski further defined by a radius of curvature measured along the sidecut of the alpine ski.