Patent ID: 8636294

Claim:
Passage system for transmission elements of bicycle components comprising: a bicycle frame with a tube construction of frame tubes comprising an upper tube; a passage for transmission elements; and at least one transmission element for control of a bicycle component of the group of gear cable, brake cable, hydraulic line or pneumatic line; wherein the upper tube is formed substantially by a covering surface; wherein the upper tube has in the covering surface a first opening and a second opening; wherein the upper tube has a tube axis and the first opening lies substantially opposite the second opening with respect to the tube axis; and wherein the first opening has a first edge region and the second opening has a second edge region; wherein a statically effective reinforcement of the first and/or second edge region is provided; wherein a passage opening of the passage for transmission elements is formed between the first and the second opening; wherein the at least one transmission element is arranged leading through the passage opening; wherein the bicycle frame has a bottom bracket axle; and wherein the second opening is arranged closer to the bottom bracket axle than the first opening; and the first opening in is arranged closer to a seat tube than the second opening.