Apparatus for wiring bicycle electrical components

A bicycle electrical control apparatus comprises a first control unit (30) that provides first electrical signals; a second control unit that provides second electrical signals; and an electrical connecting cord (65,66,68) having a first end coupled to the first control unit (30) and a second end coupled to the second control unit for communicating the first electrical signals from the first control unit (30) to the second control unit. A first connecting terminal (65a,66a,68a) is fastened to one of the first and second ends of the electrical connecting cord (65,66,68), a second connecting terminal (71,72) is disposed on one of the first and second control units, and the first connecting terminal (65a,66a,68a) is detachably connected to the second connecting terminal (71,72).