Drop handlebars, as used on road or track bicycles, may have a shallow or deep drop. Drop bars may have one or two longitudinal indentations so that the brake and shift cables protrude less when they are wrapped under the bar tape. They may also have a flattened top section. The shape of the drop may be a simple, traditional curve, or it can have a flat spot (straight section) which some riders find to be more comfortable for their hands. These bars may be described as ergo or anatomic. Drop bars that rise slightly from the centre in a shallow U, and the drop portion of the bars is set wider than the curve at the top. Designed to be slightly more comfortable than a straight drop bar for bicycles used in Audax riding.