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| Category: | Rear Derailleurs |
| Name: | SunTour XC Pro |
| Brand: | SunTour |
| Primary Group: | XC Pro |
| Model: | RD-XP00 |
| Years: | Early 1990's - ? |
| Country: | Japan |
| Added By: | JFischer on 03/11/08 |
| Updated By: | JFischer on 08/03/11 |
Additional Photos - click for full size |
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 Verify Component Photos |
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| Outer Plate Markings | SunTour XC Pro | Inner Plate Markings | Maeda Ind VIA Japan |
| Material | Aluminum Alloy | Design Category | Slant parallelogram |
| Attachment Bolt Size | 5mm Allen Key | Cable Attachment Bolt Size | 5mm Allen Key |
| Shifting Systems | SunTour AccuShift
Friction | Cable Adjuster | Yes |
| Cage Length | Medium | Max Cog Size | |
| Max Chain Wrap | | | |
| Component Variations | View Detailed List Manage Variations |
| Variations of Component exist (Component is 1 of 3) | Brand | Group |
| SunTour XC Pro GX | SunTour | XC Pro |
| SunTour XC Pro "MD" SS Type | SunTour | XC Pro |
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 |
| |
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A |
B |
C |
D |
E |
F |
G |
H |
I |
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1984 |
1985 |
1986 |
1987 |
1988 |
1989 |
1990 |
1991 |
1992 |
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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)
