Shimano FH-7403 / HB-7400, Dura-Ace 7400 (Hyperglide Rear)
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Category:  Hubs
Name:  Shimano FH-7403 / HB-7400, Dura-Ace 7400 (Hyperglide Rear)
Brand:  Shimano
Primary Group:  Dura-Ace 7400
Model:  FH-7403 / HB-7400
Years:  1991 - 1996
Country:  Japan
Weight:  256.5 grams (avg)
View Weight List
Added By: Morcovelo on 12/11/09
Updated By: MGTS on 04/15/13
Additional Photos - click for full size
Shimano FH-7403 / HB-7400, Dura-Ace 7400 (HypShimano FH-7403 / HB-7400, Dura-Ace 7400 (Hyp
Gear Compatibility CassetteFront Bearing Size/Count
Rear Bearing Size/CountRear Spacing130mm
Spoke Drilling32; 36Flange SizeLow Flange
Gear Threading/Pattern HyperGlide; UniGlideBody MarkingsDura Ace, Integrated 8 SIS
Axle MaterialSteelShell MaterialAluminum
General Information

The first Dura Ace Hyperglide compatible hub. Was produced to be backwards compatible with UniGlide - note the UG outer threads on the freehub body. The lock nuts are tapered to facilitate installing the 130mm hub in a 126mm spacing frame.

FH-7400 6/7 speed UniGlide (reduced diameter 31.8mm UG thread to allow 12T sprocket, 126mm spaced rear)
FH-7402 8speed UG (reduced diameter UG thread, 130mm spaced rear)
FH-7403 8speed UG standard size UG external thread, full length splines, plus HyperGlide spline and HG internal lockring thread.(130mm spaced rear)

The 7400 series share a unique attachment method. Instead of the normal bolt there is a threaded protrusion built into the freehub, with it's own unique extractor tool.

 

Quality:Rarity:
 
 
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Component VariationsView Detailed List  Manage Variations
Variations of Component exist (Component is 1 of 2)BrandGroup
Shimano FH-7402 / HB-7402, Dura-Ace 7400 (Uniglide Only)ShimanoDura-Ace 7400
Component Groups
Primary Group NameBrandQuick InfoBrowse Group Components
Dura-Ace 7400Shimano1984 - 1995, Road RaceView 40 Components
Details:  

Shimano's top of the line race quality component group in the mid 80's through the early 90's. The 7400 series Dura-Ace group saw several interations including the introduction of 6 then 7 and finally 8 speed SIS shifting. Eventually upgraded with 7410 parts before finally being completely replaced with 7700.

Dura-Ace was developed to give the professional racing cyclist a fraction-of-a-second advantage that can spell the difference between victory and defeat. Advanced functions like 8 speed SIS, Super SLR brakes and Shimano Total Integration provide the most refined feeling of control available in a group today. Ultra high-precision mechanisms, quality materials and rugged construction assure that Dura-Ace takes all the punishment that pro-level road racing can dish out. (1991 Dealer Manual).

Brand Information(click to expand)

Shimano Model Number Prefix List:

BB Bottom Bracket BL Brake Lever BR BRake
CB Coaster Brake CJ Cassette Joint CN ChaiN
CP Chain Protecto CR Chain Ring CS Cassette Sprockets
DF chain DeFlector DH Dynamo Hub FC Front Crank
FD Front Derailleur FE Fork Ends FH FreeHub
FS Front Suspension HB HuB HD HanDle bar
HP Head Parts (Head Set) HS Handle Stem IF Inter-3 Freehub
LP LamP MF Multi Freewheel PD PeDal
RD Rear Derailleur RH Rollerbrake Hub RM RiM
RR ReflectoRs RS Rear Suspension SB Shift Brake lever (Nexus, ?)
SC Speed Calculator (cycle computer) SF Single Freewheel Freilaufritzel SG Speed chanGe hub
SH SHoes SL Shift Lever Schalthebel SM SMall parts
SP Seat Post SQ Seat Quick release SS Single Sprocket
TL TooL WH WHeel ST Shift Brake Lever (STI, Rapid Fire, etc)
 
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WeightSourceNotesAdded By
145 GramsActualFront Alana_M
368 GramsActualRear MGTS
Fiamme
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