Shimano Dura-Ace EX
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Category:  Cassettes
Name:  Shimano Dura-Ace EX
Brand:  Shimano
Primary Group:  Dura-Ace EX
Model:  FH-7260
Years:  1978 - 1983
Country:  Japan
Weight:  220 grams, 13-23
Added By: Peddie on 02/25/10
Updated By: Peddie on 02/25/10
Additional Photos - click for full size
Shimano Dura-Ace EX
Identifying Markings{Golden finish}Tooth DesignUni-Glide
Hub Compatibility Shimano UniglideCog Count6
Material Steel  
General Information
Beside the execlusive finish, the Dura Ace EX splined sprockets have the same design as the 600 or other UG casettes. The only difference is in the tread sprocket, which has smaller inner diameter than other UG smal sprockets. The reason for this, that this was the only way to attach a 11-tooth cogwheel on the casette body, instead of 12. Anyway 11 T sprockets were quite unusual, and are still very rare to find.
Quality:Rarity:
 
 
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Additional Resources
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Resources:Reference & ChartsCatalogsGear Calculator
Component Groups
Primary Group NameBrandQuick InfoBrowse Group Components
Dura-Ace EX, 7200 seriesShimano1978 - 1984, Road RaceView 32 Components
Details:   Also came in a 'Black' series early on (78-79 or so).  I do not see any mention of a black style in any of the 1980's catalogs of the 7200 series.
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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