Shimano BB-7200 (NJS) Dura-Ace EX for DynaDrive Crankset
Main Photo
Category:  Bottom Brackets
Name:  Shimano BB-7200 (NJS) Dura-Ace EX for DynaDrive Crankset
Brand:  Shimano
Primary Group:  Dura-Ace EX
Model:  BB-7200 (NJS)
Years:  1980's
Country:  Japan
Weight:  296 grams (Actual),
incl. washer & screws
Added By: Tombo on 01/29/16
Updated By: Tombo on 02/01/16
Additional Photos - click for full size
Shimano BB-7200 (NJS) Dura-Ace EX for DynaDriShimano BB-7200 (NJS) Dura-Ace EX for DynaDriShimano BB-7200 (NJS) Dura-Ace EX for DynaDri
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Bearing Size/Count per side1/4" / 9x9Spindle MarkingsDA-Logo + "Shimano";
"NJS" {date code}
Fixed Cup Markings"Shimano Japan"; {threading};
a "G" in a triangle;
{date code}
Adjustable Cup Markings"Shimano Japan"; {threading};
{date code}
Spindle StyleSquare Taper (JIS)Axle MaterialSteel
Available ThreadingsItalian: 36mm x 24Length(s)107 ITA
Tools NeededSpanner, Locknut Wrench and Fixed Cup Wrench  
General Information
hollow spindle
not sure if fixed cup was replaced (other date code; ID)
See Incorrect Information? Log-in to submit report.  
Additional Resources
Resources:Reference & ChartsCatalogs
Component VariationsView Detailed List  Manage Variations
Variations of Component exist (Component is 1 of 2)BrandGroup
Shimano BB-7200, Dura-Ace EXShimanoDura-Ace EX
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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