SunTour BL - Blue Line
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Category:  Rear Derailleurs
Name:  SunTour BL - Blue Line
Brand:  SunTour
Primary Group:  BL - Blue Line
Model:  RD-3200
Years:  1980 - ?
Country:  Japan
Weight:  212 grams (avg)
View Weight List
Added By: TIOS on 02/28/08
Updated By: JFischer on 11/11/09
Additional Photos - click for full size
SunTour BL - Blue LineSunTour BL - Blue LineSunTour BL - Blue LineSunTour BL - Blue LineSunTour BL - Blue Line
Outer Plate Markingssuntour BLInner Plate MarkingsMaeda Industries Ltd. JAPAN [Date Code]
MaterialAluminum AlloyDesign CategorySlant parallelogram
Attachment Bolt Size6mm Allen KeyCable Attachment Bolt Size8mm Wrench
Shifting SystemsFrictionCable AdjusterYes
Cage LengthShortMax Cog Size24
Max Chain Wrap24t  
General Information
SunTour BL Blue Line Rear Derailleur. Other BL components include the front derailleur and shifters.  Example seen in second photos has date code WI, indicating a late 1980 production date.
Quality:Rarity:
 
 
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Additional Resources
Marketplace:Looking to buy one of these?Sell one like this
Resources:Reference & ChartsCatalogsExternal Resources
Component Groups
Primary Group NameBrandQuick InfoBrowse Group Components
BL - Blue LineSunTour1980 - , Road RaceView 4 Components
Details:   Originally priced group between that of the Vx and Cyclone parts.
Brand Information(click to expand)

SunTour (Maeda)

SunTour derailleurs have a two-letter date code. On rear derailleurs the code is stamped on the back side of the inner parallel arm. On front derailleurs it is stamped on the back side of the inner cage.

The first letter represents the year. Larry Osborn and I believe O (Oh) is 1972, V is 1979 and A is 1984. As with Shimano, the second letter is the month code, where A is January and L is December.

SunTour Year Code

N
O
P
Q
R
S
T
U
V
W
X
Y
Z
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
 
A
B
C
D
E
F
G
H
I
1984
1985
1986
1987
1988
1989
1990
1991
1992

SunTour Month Code

A
B
C
D
E
F
G
H
I
J
K
L
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

The earliest Suntour derailleur I have found with a code is marked OF. A rear derailleur marked OD (corresponding to April of 72) was reported by Leighton Walter. I have a bike that dates from between 1970 to 1972 that has the original SunTour derailleurs. These derailleurs do not have date codes on them, so I believe the coding started sometime between 1970 and April of 1972.

(source: vintage-trek.com)

 
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WeightSourceNotesAdded By
210 GramsUnknown JFischer
214 GramsUnknown JFischer
Rudge Whitworth
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