Groupset · 1984–1996
Shimano Dura-Ace 7400
Dura-Ace 7400 is the group that brought Shimano's SIS indexed shifting in 1984. It changed a lot over its life, so the year of a part matters. Sheldon Brown's Dura-Ace timeline gives the main steps: 6-speed SIS in 1984, 7-speed Uniglide with the 7401 revision in 1986, and 8-speed with the 7402 revision (1989 in Sheldon Brown's timeline; Disraeli Gears dates the RD-7402 to 1988). 8-speed Hyperglide and Superglide chainrings arrived in 1990, and STI brake-shift levers and dual-pivot brakes in 1991. A UN-91 cartridge bottom bracket followed in 1993 and FC-7410 low-profile cranks in 1994, and the 9-speed 7700 group replaced it all in 1997. The quirk to know: until 7700, Dura-Ace rear derailleurs needed less cable per click than other Shimano road parts. Dura-Ace levers and derailleurs only index with each other, and Dura-Ace Uniglide freehubs used their own top-cog thread. Match parts by generation, using the stamped model numbers and the two-letter date codes.
6 references tracked in the gruppo.
Shimano Dura-Ace 7400
DerailleurShimano Dura-Ace RD-7402 rear derailleur
Shimano· ref RD-7402
- Speeds
- 8-speed indexed (Dura-Ace SIS or STI)
- Era
- 1980s
$45–$70 typical ask
175 on eBay
Shimano Dura-Ace 7400
DerailleurShimano Dura-Ace 7400-series front derailleur
Shimano· ref FD-7400 series (FD-7410 later)
- Speeds
- Double chainring
- Era
- 1980s
$35–$70 typical ask
93 on eBay
Shimano Dura-Ace 7400
ShifterShimano Dura-Ace 7400-series SIS down-tube shifters
Shimano· ref Dura-Ace 7400 SIS down-tube levers (6-, 7- or 8-speed)
- Speeds
- Indexed 6-, 7- or 8-speed depending on generation
- Era
- 1980s
$80–$200 typical ask
27 on eBay
Shimano Dura-Ace 7400
CranksetShimano Dura-Ace 7400-series crankset
Shimano· ref FC-7400 series (FC-7410 from 1994)
- Speeds
- Double, 130 mm BCD
- Era
- 1980s
$100–$220 typical ask
71 on eBay
Shimano Dura-Ace 7400
BrakeShimano Dura-Ace 7400-series brake calipers
Shimano· ref BR-7400 series (single-pivot; dual-pivot from 1991)
- Era
- 1980s
$70–$110 typical ask
250 on eBay
Shimano Dura-Ace 7400
Hub & wheelShimano Dura-Ace 7400-series hub set
Shimano· ref Dura-Ace 7400-series front hub and freehub
- Speeds
- 6-, 7- or 8-speed freehub depending on year
- Era
- 1980s
$45–$150 typical ask
135 on eBay
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