Shimano Dura-Ace 7500 B-Type track ring (NJS)
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Category:  Chainrings
Name:  Shimano Dura-Ace 7500 B-Type track ring (NJS)
Brand:  Shimano
Primary Group:  Dura-Ace 7500
Model:  FC-7500 (B-Type)
Years:  Late 1970's - Early 1980's
Country:  Japan
Added By: bmarsha on 03/26/17
Updated By: bmarsha on 03/26/17
Additional Photos - click for full size
Shimano Dura-Ace 7500 B-Type track ring (NJS)Shimano Dura-Ace 7500 B-Type track ring (NJS)Shimano Dura-Ace 7500 B-Type track ring (NJS)Shimano Dura-Ace 7500 B-Type track ring (NJS)Shimano Dura-Ace 7500 B-Type track ring (NJS)Shimano Dura-Ace 7500 B-Type track ring (NJS)
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Identifying MarksShimano Track (NJS)BCD 151
Tooth Count Range45-55Ring PositionSingle Ring
Chain PitchHalf Inch (modern standard)Chain Width1/8"
MaterialAluminum  
General Information
B-Type chainring for Dura-Ace FC-7500 font chainwheel.

Part numbers from 1982 Shimano catalog are...

45t - 131 4502
46t - 131 4602
47t - 131 4702
48t - 131 4802
49t - 131 4902
50t - 131 5002
51t - 131 5102
52t - 131 5202
53t - 131 5302
54t - 131 5402
55t - 131 5502
Quality:Rarity:
 
 
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Component VariationsView Detailed List  Manage Variations
Variations of Component exist (Component is 1 of 2)BrandGroup
Shimano Dura-Ace 7500 A-Type track ring (NJS)ShimanoDura-Ace 7500
Component Groups
Primary Group NameBrandQuick InfoBrowse Group Components
Dura-Ace 7500Shimano1977 - 1984, TrackView 9 Components
Details:   The Dura-Ace 7500 group is a track / fixed gear groupset produced by Shimano at approximately the same time as their Dura-Ace 10 group.  The 7500 series however did not use the 10-pitch design, but a standard chain and tooth size.
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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