Shimano HP-7410, Dura-Ace
Main Photo
Category:  Headsets
Name:  Shimano HP-7410, Dura-Ace
Brand:  Shimano
Primary Group:  Dura-Ace 7410
Model:  HP-7410
Years:  1994 - 2006
Country:  Japan
Weight:  103 grams
Added By: gizmologist on 12/13/07
Updated By: JFischer on 03/08/11
Additional Photos - click for full size
Shimano HP-7410, Dura-Ace Shimano HP-7410, Dura-Ace Shimano HP-7410, Dura-Ace
Body MaterialAluminumUpper Bearing SizeSealed Bearing
Lower Bearing SizeSealed BearingCrown Race SizeISO or JIS
Upper Cup MarkingsDura AceLower Cup MarkingsDura Ace
Available Threading English/ISO/Italian (25.4mm x 24TPI)Stack Height 37.6mm
General Information

The top flat of the top nut is marked VIA  JAPAN VC  SHIMANO  HP-7410  BC1

Cart.9803 sealed cartridge bearings.

This headset pictured actually has some interesting provenance too.  It is a take off of Paula Newby Fraser's Ironman winning Felt bike.

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Additional Resources
Resources:Reference & ChartsCatalogs
Component Groups
Primary Group NameBrandQuick InfoBrowse Group Components
Dura-Ace 7410Shimano1994 - 1996, Road RaceView 15 Components
Details:   Last of the Dura-Ace 7400 series, the 7410 was enough of a departure from the original 7400 series that many sources list it as a seperate group.
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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