SunTour RD-XC00, XC 9000
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Category:  Rear Derailleurs
Name:  SunTour RD-XC00, XC 9000
Brand:  SunTour
Primary Group:  XC 9000
Model:  RD-XC00
Years:  1987 - ?
Country:  Japan
Weight:  255 grams (Spec)
Added By: Catnap on 01/18/11
Updated By: Tommy on 01/13/13
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SunTour RD-XC00, XC 9000SunTour RD-XC00, XC 9000SunTour RD-XC00, XC 9000
 Verify Component Photos
Outer Plate MarkingsSunTour XC 9000Inner Plate Markings
MaterialAluminum Alloy; SteelDesign CategorySlant parallelogram
Attachment Bolt Size5mm Allen KeyCable Attachment Bolt Size5mm Allen Key
Shifting SystemsSunTour AccuShiftCable AdjusterYes
Cage LengthLongMax Cog Size
Max Chain Wrap  
General Information
Rear Derailleur: XC 9000 RD-XC00 black "knuckles" with Suntour XC 9000 printed on a black panel, High Low adjustment screws are on the face of the body, 255g
Quality:Rarity:
 
 
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Component Groups
Primary Group NameBrandQuick InfoBrowse Group Components
XC 9000SunTourMountain BikeView 11 Components
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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