Abstract: A handlebar stem core (1) for a handlebar stem of a bicycle comprises a rear-side steer tube receptacle (1a), a front-side handlebar receptacle (1c), and a handlebar stem tube (1b) lying in between. The handlebar stem core is formed for the integrated guidance of a number n of cables (5), with n equal to 1, 2, 3, 4 or greater, and the handlebar stem core is configured for attachment to a cable central section of the number n of cables. The solution allows for guiding mechanical, hydraulic or else electrical brake and gear cables or lines proceeding from the respective operating elements at the handlebar or the handlebar ends to the bicycle frame or the head tube and/or the bicycle fork in a manner concealed from the outside with a low assembly outlay.

Abstract: A protective helmet with a movable visor. The protective helmet includes a shell with an open facial region as well as the visor. The visor is movable between a first position, in which the visor at least partially covers said open facial region and at least one second position, in which the visor lies on the shell substantially outside of the open facial region. The visor includes at least one first element of a detachable fastening element arranged on an edge of the visor. The shell includes at least two second elements of the detachable fastening element arranged on the shell such that each of the second elements of the detachable fastening element may hold the visor in the first and said at least one second position, respectively, by forming a releasable connection with the first element.

Abstract: A handlebar stem core (1) for a handlebar stem of a bicycle comprises a rear-side steer tube receptacle (1a), a front-side handlebar receptacle (1c), and a handlebar stem tube (1b) lying in between. The handlebar stem core is formed for the integrated guidance of a number n of cables (5), with n equal to 1, 2, 3, 4 or greater, and the handlebar stem core is configured for attachment to a cable central section of the number n of cables. The solution allows for guiding mechanical, hydraulic or else electrical brake and gear cables or lines proceeding from the respective operating elements at the handlebar or the handlebar ends to the bicycle frame or the head tube and/or the bicycle fork in a manner concealed from the outside with a low assembly outlay.

Abstract: A bicycle fork includes a fork shaft configured to be rotatably borne by headset bearings in a head tube of a bicycle frame so as to rotate about a steering axis. The fork shaft includes a cylindrical fork shaft segment that is disposed eccentrically with respect to the steering axis. The cylindrical fork shaft segment is a right circular cylinder having a hollow interior, a cylindrical inner surface and a central longitudinal axis that lies within a symmetry plane of the bicycle frame and extends parallel to the steering axis. The central longitudinal axis of the cylindrical fork shaft segment is spaced apart from the steering axis in a direction of eccentricity that points in an opposite direction with respect to a forward direction of travel of the bicycle.

Abstract: The invention relates to a bicycle wheel made of a fiber composite material, including a rim, a plurality of spokes, and a center, wherein the spokes each have a first and second spoke section extending between the rim and the center, wherein the first and second rim section have a curved shape in a laminated state and the two rim sections extend straight in a pretensioned state.

Abstract: The invention relates to a face cover device providing a closure over a predetermined area of a face, having a functional part (2) and a face rest part (1) which are interconnected by one connecting section or a plurality of connecting sections (3, 8), characterized in that the one connecting section or at least one of the plurality of connecting sections is an adjustable connecting section (3) that allows for adjusting the position of the face rest part relative to the functional part.

Abstract: A method is provided for producing a bicycle wheel made of a fiber composite material, including laminating, in one piece and in one step, a rim, a plurality of spokes each including a first spoke section and a second spoke section, and a center having a first center disc and a second center disc, wherein all fibers for the rim, the spokes, and the center are laid in mold parts in the one step; curing the laminated rim, spokes, and center to form the bicycle wheel; and removing the formed bicycle wheel in said one piece from the mold, wherein the spokes are laminated and cured such that the first spoke section and the second spoke section have a substantially straight shape.

Abstract: A method is provided for producing a bicycle wheel made of a fiber composite material, including laminating, in one piece and in one step, a rim, a plurality of spokes each including a first spoke section and a second spoke section, and a center having a first center disc and a second center disc, wherein all fibers for the rim, the spokes, and the center are laid in mold parts in the one step; curing the laminated rim, spokes, and center to form the bicycle wheel; and removing the formed bicycle wheel in said one piece from the mold, wherein the spokes are laminated and cured such that the first spoke section and the second spoke section have a substantially straight shape.

Abstract: The invention relates to a bicycle wheel made of a fiber composite material, including a rim, a plurality of spokes, and a center, wherein the spokes each have a first and second spoke section extending between the rim and the center, wherein the first and second rim section have a curved shape in a laminated state and the two rim sections extend straight in a pretensioned state.

Abstract: The invention relates to a component (1) for a bicycle frame having a wing profile front side portion (2) and a back side portion (3) that is convex at least in certain portions. The invention further relates to a bottle holder (10) which is attachable to the component (1) or is configured in one piece with the component (1).

Abstract: The invention relates to a face cover device providing a closure over a predetermined area of a face, having a functional part (2) and a face rest part (1) which are interconnected by one connecting section or a plurality of connecting sections (3, 8), characterized in that the one connecting section or at least one of the plurality of connecting sections is an adjustable connecting section (3) that allows for adjusting the position of the face rest part relative to the functional part.

Abstract: The invention relates to a component (1) for a bicycle frame having a wing profile front side portion (2) and a back side portion (3) that is convex at least in certain portions. The invention further relates to a bottle holder (10) which is attachable to the component (1) or is configured in one piece with the component (1).

Abstract: The invention relates to a mechanical device for modifying the radial geometry of a ski, proportionally to its flexion, which includes elements, referred to as transmission elements, which, each interposed between the rod and the ski wherein each transform a relative displacement of the rod, oriented along its longitudinal axis and directed towards one of the ends of the ski (direction S1), into a second displacement oriented along a direction intersecting the longitudinal axis and directed towards the outside of the ski and wherein each apply this displacement at a selected place of the ski so as to bring about, during the relative displacement of the rod, a thrust generating the deformation of this ski along its cross-section, transverse deformation translated, in particular, through a spacing apart in the upper part of the ski and through the desired modification of the geometry of the lower face of this ski.

Abstract: A ski having a sandwich-like construction including rods and slit stops for changing a radial geometry of the ski. When the ski flexes, the rods and the ski change their respective radii differentially, causing changes in the slit stops. In turn, the slit stops spread or constrict to change maneuvering characteristics of the ski.