SunTour WT-7000 WINUL 7S-S
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Category:  Freewheels
Name:  SunTour WT-7000 WINUL 7S-S
Brand:  SunTour
Model:  WT-7000 WINUL 7S-S
Years:  Mid 1980's - Early 1990's
Country:  Japan
Added By: nemo57 on 07/25/20
Updated By: nemo57 on 07/25/20
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SunTour WT-7000 WINUL 7S-SSunTour WT-7000 WINUL 7S-SSunTour WT-7000 WINUL 7S-S
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Cog Count 7Available ThreadingEnglish/ISO: 1.370" x 24
ColorAluminium (Alloy)Index Compatibility Non-indexed, compact spacing
Cog MaterialsAluminum AlloyIdentifying Markings
Removal Tool Style 4 ProngRemoval Tool 
Original Available Ranges13-23;
Various other cog arrangements
  
General Information
Ultra spacing, suited to 126mm rear drop-outs
Available in 13-14-15-16-18-20-23
Available in 13-14-16-18-21-26-34

Quality:Rarity:
 
 
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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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