Shimano RD-DE20, Deore
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Category:  Rear Derailleurs
Name:  Shimano RD-DE20, Deore
Brand:  Shimano
Primary Group:  Deore
Model:  RD-DE20
Years:  Mid 1980's
Country:  Japan
Added By: JFischer on 03/12/09
Updated By: Tommy on 10/11/16
Additional Photos - click for full size
Shimano RD-DE20, DeoreShimano RD-DE20, DeoreShimano RD-DE20, DeoreShimano RD-DE20, DeoreShimano RD-DE20, Deore
Outer Plate MarkingsDEOREInner Plate Markings
MaterialAluminum AlloyDesign CategoryInline parallelogram
Attachment Bolt Size6mm Allen KeyCable Attachment Bolt Size8mm Wrench
Shifting SystemsFrictionCable AdjusterYes
Cage LengthLongMax Cog Size34
Max Chain Wrap34t  
General Information
 
Quality:Rarity:
 
 
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Resources:Reference & ChartsCatalogs
Component Groups
Primary Group NameBrandQuick InfoBrowse Group Components
Deore (First Generation)Shimano1980 - 1983, Touring & MTBView 12 Components
Details:   The original 'Deore' series of components, primarly designed for Touring bikes, but the extended range gearing made it more off-road capable than Shimano's other offerings of the time.
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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