Abstract: A stem for a two-wheeled vehicle, including a first end and a second end, wherein the first end is provided with a mounting section which is suitable and configured to be fastened to at least one fork column. Furthermore, a holding device for a handlebar device is disposed between the first end and the second end. A stem length is provided between the mounting section and the holding device for the handlebar device. Moreover, an adjustment section with an adjustment member is provided between the first end and the second end wherein the holding device for the handlebar device is provided in portions by the adjustment member. Depending on the arrangement of the adjustment member in the adjustment section, two different stem lengths can thus be set.

Abstract: A stem for a two-wheeled vehicle, including a first end and a second end, wherein the first end is provided with a mounting section which is suitable and configured to be fastened to at least one fork column. Furthermore, a holding device for a handlebar device is disposed between the first end and the second end. A stem length is provided between the mounting section and the holding device for the handlebar device. Moreover, an adjustment section with an adjustment member is provided between the first end and the second end wherein the holding device for the handlebar device is provided in portions by the adjustment member. Depending on the arrangement of the adjustment member in the adjustment section, two different stem lengths can thus be set.

Abstract: An attachment for two-wheeled vehicles and a wheel for a two-wheeled vehicle having these attachments are provided. The wheel includes a hub, a rim and separate spokes connecting the hub and the rim. Portions of the spoke nipples protruding radially inwardly from the rim are covered by cover caps. The cover cap is configured small in structure and aerodynamic in shape. To this end, the length in the peripheral direction is larger than the width.

Abstract: A frame for a bicycle and a bicycle equipped therewith, wherein the frame includes a frame body having a top tube and a down tube, and at least one supporting device connecting the top tube to the down tube. A supporting device includes a flow-through opening through which, when used as intended, at least part of the arriving air flows.

Abstract: A handlebar assembly for a two-wheeled vehicle, in particular a bicycle having a first end and having a second end and having a mounting portion positioned between the ends, wherein the handlebar assembly forms at least one through hole or passage area for air flowing through between said first end and the second end, and a bicycle having such a handlebar assembly.

Abstract: An attachment for two-wheeled vehicles and a wheel for a two-wheeled vehicle having these attachments are provided. The wheel includes a hub, a rim and separate spokes connecting the hub and the rim. Portions of the spoke nipples protruding radially inwardly from the rim are covered by cover caps. The cover cap is configured small in structure and aerodynamic in shape. To this end, the length in the peripheral direction is larger than the width.

Abstract: A frame for a bicycle and a bicycle equipped therewith, wherein the frame includes a frame body having a top tube and a down tube, and at least one supporting device connecting the top tube to the down tube. A supporting device includes a flow-through opening through which, when used as intended, at least part of the arriving air flows.

Abstract: A stem front cap for the stem of a bicycle, including: a body having a mounting part that is adapted and structured for receiving and securing a handlebar in conjunction with a stem. A receiving section at the body of the stem front cap is provided for receiving and securing at least one aero support to enable the user to assume an aerodynamic operating posture on a bicycle.

Abstract: An aero supporting device for a bicycle, including two elongated aero supports that extend in a front direction of a bicycle when used in accordance with the intended purpose and which can be gripped by a user, as well as two arm rests on which a user can rest his forearms or elbows, for e.g. attaining a reduced drag, wherein a covering device is provided which jointly surrounds at least the two aero supports.

Abstract: A stem front cap for the stem of a bicycle, including: a body having a mounting part that is adapted and structured for receiving and securing a handlebar in conjunction with a stem. A receiving section at the body of the stem front cap is provided for receiving and securing at least one aero support to enable the user to assume an aerodynamic operating posture on a bicycle.

Abstract: A handlebar assembly for a two-wheeled vehicle, in particular a bicycle having a first end and having a second end and having a mounting portion positioned between the ends, wherein the handlebar assembly forms at least one through hole or passage area for air flowing through between said first end and the second end, and a bicycle having such a handlebar assembly.