Shimano EA-100, Dura-Ace (Black)
Main Photo
Category:  Front Derailleurs
Name:  Shimano EA-100, Dura-Ace (Black)
Brand:  Shimano
Primary Group:  Dura-Ace
Model:  EA-100
Years:  1973 - 1976
Country:  Japan
Weight:  107 grams (Actual)
Added By: Volkers79 on 02/13/10
Updated By: Ideale_#80 on 05/25/12
Additional Photos - click for full size
Shimano EA-100, Dura-Ace (Black)Shimano EA-100, Dura-Ace (Black)Shimano EA-100, Dura-Ace (Black)Shimano EA-100, Dura-Ace (Black)Shimano EA-100, Dura-Ace (Black)
 Verify Component Photos
# Rings Designed For DoubleOuter Plate MarkingsDura Ace
Inner Plate MarkingsShimano Industrial CO.LTD. JapanClamp MarkingsShimano
Inner Clamp MarkingsDesign CategoryParallelogram
Pivot Arm MarkingsPlate MaterialAluminum
Clamp Style25.4mm ClampCable Attachment Bolt9mm Wrench
CableStop NoClamp Bolt Type
Max Ring Difference 16T  
General Information
1973 First generation Dura ace Black Derailleur, with white painting on the clamp
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Additional Resources
Resources:Reference & ChartsCatalogs
Component VariationsView Detailed List  Manage Variations
Variations of Component exist (Component is 1 of 2)BrandGroup
Shimano EA-100, Dura-Ace (First Generation)ShimanoDura-Ace
Component Groups
Primary Group NameBrandQuick InfoBrowse Group Components
Dura-Ace, First GenerationShimano1973 - 1976, Road RaceView 35 Components
Details:   The introduction of Dura-Ace in the mid 1970's, along with the indroduction of the Shimano 600 group were Shimano's first attempts at a professional quality road racing component group.  The first Generation Dura-Ace was updated and renamed the 7100 series by around 1977/78.
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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