Wheel component in particular for bicycles

A wheel component for at least partially muscle-powered sports and racing bicycles, comprising:

• an annular tire and a tread surface configured in a central triangle segment and laterally adjacent side surfaces;
• wherein the tread surface in proper use in straight-ahead travel on a plane ground makes at least partial contact with the surface of the ground, opening up a longitudinal sectional plane;
• wherein aero elements are configured on the surface of the annular tire;
• the aero elements are each configured planar as a depression in the surface of the tire and are disposed on the side surfaces, and define circumferential angular bands on the side surfaces;
• wherein an angular band is configured as a ring, which is defined radially inwardly and radially outwardly by the radial extension of the aero elements,
• the surface proportion of the aero elements to the surface of an angular band is more than 5% and less than 25%,
• the surface of the tire in proper use is configured without profile, except for the aero elements,
• at least one aero element shows a radial extension between 0.40 mm and 2 mm,
• and a ratio of the maximum extension to the minimum extension of the aero elements on the surface of the tire is less than 5.

A wheel component for at least partially muscle-powered sports and racing bicycles, comprising:

• an annular tire and a tread surface configured in a central triangle segment and laterally adjacent side surfaces;
• wherein the tread surface in proper use in straight-ahead travel on a plane ground makes at least partial contact with the surface of the ground, opening up a longitudinal sectional plane;
• wherein aero elements are configured on the surface of the annular tire;
• the aero elements are each configured planar as a depression in the surface of the tire and are disposed on the side surfaces;
• and define circumferential angular bands on the side surfaces;
• wherein each circumferential angular band is defined radially inwardly and radially outwardly by the radial extension of the aero elements;
• and that the surface proportion of the aero elements to the surface of an angular band is more than 5% and less than 25%,
• and wherein each aero element is configured separately on the surface and wherein a distance from each said aero element to the next said aero element is larger than the maximum dimension of the aero element;
• wherein the surface of the circumferential angular band is configured without profile, except for said aero elements;
• and
• wherein a ratio of a maximum extension to a minimum extension of the aero elements on the surface of the tire is less than 3.