SunTour New Winner 6sp Ultra
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Category:  Freewheels
Name:  SunTour New Winner 6sp Ultra
Brand:  SunTour
Model:  NWUL6
Years:  1970's - 1980's
Country:  Japan
Added By: JFischer on 01/14/10
Updated By: watsondm on 02/19/10
Additional Photos - click for full size
SunTour New Winner 6sp UltraSunTour New Winner 6sp UltraSunTour New Winner 6sp UltraSunTour New Winner 6sp UltraSunTour New Winner 6sp UltraSunTour New Winner 6sp Ultra
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Cog Count 6Available ThreadingEnglish/ISO: 1.370" x 24
ColorSilverIndex Compatibility AccuShift 6;
Non-indexed, compact spacing
Cog MaterialsSteelIdentifying MarkingsGear size is imprinted on the back side of the cog, i.e. A 26 (for the 26-tooth cog).
Removal Tool Style Two ProngRemoval Tool Park FR-2; VAR 706;
Bicycle Research CT-7;
SunTour 2 prong
Original Available Ranges13-15-17-20-23-26  
General Information

I've attached some pics of the 6-speed freewheel.  This 6-speed cog set up, coupled with a 52/42 crankset, offers relatively smooth shifting through the gear shift pattern. 

Ring/Gear

13

15

17

20

23

26

52

105.52

91.45

80.69

68.59

59.64

52.76

42

85.23

73.86

65.17

55.4

48.17

42.61

Quality:Rarity:
 
 
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Additional Resources
Marketplace:
Resources:Reference & ChartsCatalogsExternal ResourcesGear Calculator
Component VariationsView Detailed List  Manage Variations
Variations of Component exist (Component is 1 of 2)BrandGroup
SunTour NW-5000, New Winner 5spSunTour
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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