Patent 7699333 was granted and assigned to Canyon Bicycles on April, 2010 by the United States Patent and Trademark Office.
In a saddle tube for a bicycle frame, especially a racing bicycle frame, the bottom bracket end (22) of the saddle tube is wider in a direction transverse to the longitudinal direction (24) of the frame than in the longitudinal direction (24) of the frame. According to the invention, the saddle tube (18) has a flat portion (32) at the chain ring side.