SunTour SP-XC00, XC9000
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Category:  Seat Posts
Name:  SunTour SP-XC00, XC9000
Brand:  SunTour
Primary Group:  XC 9000
Model:  SP-XC00
Years:  Late 1980's - Early 1990's
Country:  Japan
Weight:  290 grams
Added By: JFischer on 02/28/08
Updated By: Swede on 05/12/20
Additional Photos - click for full size
SunTour SP-XC00, XC9000SunTour SP-XC00, XC9000SunTour SP-XC00, XC9000SunTour SP-XC00, XC9000SunTour SP-XC00, XC9000SunTour SP-XC00, XC9000SunTour SP-XC00, XC9000
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MarkingsSunTour XC & XC ProMaterialAluminum
Shaft DesignSmoothSaddle Attachment StyleDouble clamp
Saddle Attachment Bolt Size(s)6mm Allen KeyOverall Length 300mm
Max Height 200mmSetback 
General Information

26.4 - 27.2mm sizes.  Most of these seat posts were marked as part of the XC Pro group, however I have seen an early version of this seat post which was clearly marked model SP-XC00, SunTour XC 9000.  At this time I do not have a lot of other information regarding the XC 9000 parts, however they were produced from about 87 through 89.  Mombat.org has a good list of SunTour mountain bike parts from this time period.

Quality:Rarity:
 
 
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Additional Resources
Resources:Reference & ChartsCatalogsExternal Resources
Component Groups
Primary Group NameBrandQuick InfoBrowse Group Components
XC 9000SunTour1987 - 1989, Mountain BikeView 28 Components
Group NameBrandQuick InfoBrowse Group Components
XC ProSunTour1990 - , Mountain BikeView 23 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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