The present invention provides a bicycle front derailleur mountable to a
seat tube of a bicycle frame for fitting a chain around a selected
sprocket of a multiple chainwheel by pushing the chain laterally at a
portion thereof advancing into engagement with the chainwheel, the front
derailleur comprising: a fixed section fixed to a bicycle frame, a chain
guide for contacting a chain to shift the chain, and an actuating arm and
a linkage rod disposed between and pivotally connected to the fixed
section and the chain guide. In the above construction, the present
invention has achieved the intended object of providing an improved
bicycle front derailleur capable of reliably effecting a change speed
operation with the aid of a sufficient restoring force of the return
spring and achieving minimized in operation forces required for various
change speeds.