Patent ID: 7874229

Claim:
A bicycle system for controlling a front derailleur and a rear derailleur comprising: a handlebar including a central portion, a first end portion on a first lateral side of the central portion and a second end portion on a second lateral side of the central portion; a base member with a bicycle handlebar attachment part attached to the first end portion of the handlebar at a first handlebar location on the handlebar; a control unit housed within the base member; a front derailleur gearshift signal line electrically coupled to the control unit for transferring a front derailleur gearshift signal indicative of the first gearshift operation to the front derailleur; a rear derailleur gearshift signal line electrically coupled to the control unit for transferring a rear derailleur gearshift signal indicative of the second gearshift operation to the rear derailleur; a first gearshift operating part attached to the first end portion of the handlebar with the first gearshift operating part being electrically wired to the control unit for controlling the front derailleur to selectively perform a first gearshift operation in that the control unit outputs the front derailleur gearshift signal via the front derailleur gearshift signal line in response to operation of the first gearshift operating part; and a second gearshift operating part attached to the first end portion of the handlebar with the second gearshift operating part being electrically wired to the control unit for controlling the rear derailleur to selectively perform a second gearshift operation in that the control unit outputs the rear derailleur gearshift signal via the rear derailleur gearshift signal line in response to operation of the second gearshift operating part; a third gearshift operating part attached to the handlebar at a second handlebar location on the handlebar that is between a free end of the first end portion of the handlebar and the first handlebar location of the base member, with the third gearshift operating part being electrically wired to the control unit to control one of the front and rear derailleurs to perform a third gearshift operation, with the first handlebar location being spaced from the second handlebar location in an axial direction of the handlebar.