Shimano Dura-Ace 7400 6 Speed Rear Derailleur My Favourite Piece of Kit » My TI-Raleigh SB4059
Shimano Dura Ace 7400 Series Groupset with Wheels - The Paceline Forum
Alan Carbonio / Full Shimano Dura Ace 7400 Group / 51 cm – velowizard.com
RideShimano on Twitter: "TBT: 1984 Shimano introduces the Dura-Ace 7400 series. The first SIS shifting system in cycling history #RideShimano https://t.co/GIfp3Gm2Fe" / Twitter