To provide a bicycle speed-change control device to control a derailleur which can be electrically controlled and to prevent contact of a chain with a front derailleur.
This speed-change control device 110 to control the front derailleur 97f to move the chain 95 to either one of a plurality of front sprockets arranged in the axial direction is furnished with a speed-change control part 130a and a small control part (b). The speed-change control part moves the front derailleur to either one of front speed-change positions corresponding to a plurality of the front sprockets. The small control part moves the front derailleur by a distance smaller than a moving distance between the speed-change positions in accordance with a rear speed-change position of the rear derailleur in correspondence with a plurality of the rear sprockets arranged in the rear hub axial direction.
FUJII KAZUHIRO
ICHIDA TSUKASA
TAKEBAYASHI HARUYUKI
Hidetada Kato