Cable routing for a bicycle and frame and derailleur hanger for the use of a cable routing

The unit has cable guide parts (6, 7) attached to different cables to be guided. The guide parts are detachably held at a frame (1) of a mountain bike or a racing cycle. Inserts are detachably attached to portions of the frame of the mountain bike or the racing cycle. The inserts hold a mechanical cable, electrical and/or hydraulic lines and accumulators for electrical devices e.g. electrical or electronic controlled switching mechanisms or chassis components. Regions of the cables are guided through the frame of the mountain bike or the racing cycle. Independent claims are also included for the following: (1) a frame (2) a derailleur hanger.