UCI CYCLING REGULATIONS  Position of compensation triangles  Shape (3)  1.3.021 [article abrogated on 01.01.21] d) Structure 1.3.022 In competitions other than those covered by article 1.3.023, only the traditional type of  handlebars (see diagram «structure 1») may be used. The handlebars must be  positioned in an area defined as follows: above, by the horizontal plane of the point of  support of the saddle (B); below, by the horizontal line passing 10 cm below the highest  point of the two wheels (these being of equal diameter) (C); at the rear by the axis of the  steerer tube (D) and at the front by a vertical line passing through the front wheel spindle  with a 5 cm tolerance (see diagram «Structure (1A)»). The distance referred to in point  (A) is not applicable to the bicycle of a rider who takes part in a sprint event on track  (flying 200 m, flying lap, sprint, team sprint, keirin, 500 metres and 1 kilometre), but must  not exceed 10 cm in relation to the vertical line passing through the front wheel spindle.  The brake controls attached to the handlebars shall consist of two supports with levers.  It must be possible to operate the brakes by pulling on the levers with the hands on the  lever supports. Any extension to or reconfiguration of the supports to enable an  alternative use is prohibited. A combined system of brake and gear controls is  authorised.  E0221  GENERAL ORGANISATION OF CYCLING AS A SPORT  66 