Датировка компонентов Shimano
Добавлено: 20 май 2009, 01:16
Чуть не забыл. Минифак по определению даты компонентов Шимы по двухбуквенному индексу на наклейках компонентов. Их многие игнорируют, но могут быть полезными. Например, при оформлении гарантии в магазине, серийного номера на железках же нет.
На английском, но в принципе должно быть все понятно.
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Shimano components have a two letter date code, in the form XX, where X is a capital letter. A friendly Shimano representative told me the code is not public but he was able to answer some of my questions. One letter is the month, the other is the year. He thought all Shimano components use a common code. Some Dura-Ace seatposts are stamped with a two letter code of the form X-X, where X is a letter. The Shimano representative believed this is the same meaning as the more typical form XX.
The date code is stamped (or cast?) into the component and appears separately from other markings. It is easy to confuse the date code with the alphanumeric model number (e.g. "HB-6500" marked on an Ultegra hub). The code is on the outer flange or the center shaft of hubs, on the backside of crank arms, and below the insertion mark on (at least some) seatposts. On crank arms, the letters may appear as about 3mm tall and enclosed in a circle. On at least some rear derailleurs the date code is stamped on the inner face of the outer part of the cage. On at least some headsets, the code is stamped on the underside of the fork crown race, and it is visible when installed.
The first letter represents the year and the second is the month, where A is January and L is December. For the first letter A is 1976 and the letters proceed sequentially from there: K is 1986 and Z is 2001. Year 2002 restarts with A.
Shimano Year Code
A 1976 2002
B 1977 2003
C 1978 2004
D 1979 2005
E 1980 2006
F 1981 2007
G 1982 2008
H 1983 2009
I 1984 2010
J 1985
K 1986
L 1987
M 1988
N 1989
O 1990
P 1991
Q 1992
R 1993
S 1994
T 1995
U 1996
V 1997
W 1998
X 1999
Y 2000
Z 2001
Shimano Month Code
A Jan
B Feb
C Mar
D Apr
E May
F Jun
G Jul
H Aug
I Sep
J Oct
K Nov
L Dec
Here are some observations regarding Shimano dates (provided by Tom Marshall):
1. "Front derailleur codes are generally on the frame side of the inner cage plate.
2. "Bottom bracket codes are on the outside of both cups and on the spindle."
3. "Down tube shift lever codes are generally on the backside on the SIS hub."
4. "Codes for STI road levers are generally cast into the medial side of the body. You should be able to see it by peeling back the hood from the handlebar end. On some models there may also be another date code on back of lever's tip."
5. "On dates which can be read backwards (upside down) Shimano underscores the date code."
6. "The 1992 code "Q" has a backslash (\) through it to distinguish it from the 1990 code "O" (Oh).
7. "Pre-76 hubs appear to have a single year letter code (without the month designator). A hub I have has a Y which I assume is 1974, which matches my estimated age for the hubs."
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И маленькое добавление. Часто этот вопрос слышу - что значит логотип VIA на компонентах Шимы и вроде на СРАМ тоже мелькает. Отвечаем: логотип сертификата, означающего допуск данного компонента на использование на дорогах Японии. Не больше и не меньше.
На английском, но в принципе должно быть все понятно.
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Shimano components have a two letter date code, in the form XX, where X is a capital letter. A friendly Shimano representative told me the code is not public but he was able to answer some of my questions. One letter is the month, the other is the year. He thought all Shimano components use a common code. Some Dura-Ace seatposts are stamped with a two letter code of the form X-X, where X is a letter. The Shimano representative believed this is the same meaning as the more typical form XX.
The date code is stamped (or cast?) into the component and appears separately from other markings. It is easy to confuse the date code with the alphanumeric model number (e.g. "HB-6500" marked on an Ultegra hub). The code is on the outer flange or the center shaft of hubs, on the backside of crank arms, and below the insertion mark on (at least some) seatposts. On crank arms, the letters may appear as about 3mm tall and enclosed in a circle. On at least some rear derailleurs the date code is stamped on the inner face of the outer part of the cage. On at least some headsets, the code is stamped on the underside of the fork crown race, and it is visible when installed.
The first letter represents the year and the second is the month, where A is January and L is December. For the first letter A is 1976 and the letters proceed sequentially from there: K is 1986 and Z is 2001. Year 2002 restarts with A.
Shimano Year Code
A 1976 2002
B 1977 2003
C 1978 2004
D 1979 2005
E 1980 2006
F 1981 2007
G 1982 2008
H 1983 2009
I 1984 2010
J 1985
K 1986
L 1987
M 1988
N 1989
O 1990
P 1991
Q 1992
R 1993
S 1994
T 1995
U 1996
V 1997
W 1998
X 1999
Y 2000
Z 2001
Shimano Month Code
A Jan
B Feb
C Mar
D Apr
E May
F Jun
G Jul
H Aug
I Sep
J Oct
K Nov
L Dec
Here are some observations regarding Shimano dates (provided by Tom Marshall):
1. "Front derailleur codes are generally on the frame side of the inner cage plate.
2. "Bottom bracket codes are on the outside of both cups and on the spindle."
3. "Down tube shift lever codes are generally on the backside on the SIS hub."
4. "Codes for STI road levers are generally cast into the medial side of the body. You should be able to see it by peeling back the hood from the handlebar end. On some models there may also be another date code on back of lever's tip."
5. "On dates which can be read backwards (upside down) Shimano underscores the date code."
6. "The 1992 code "Q" has a backslash (\) through it to distinguish it from the 1990 code "O" (Oh).
7. "Pre-76 hubs appear to have a single year letter code (without the month designator). A hub I have has a Y which I assume is 1974, which matches my estimated age for the hubs."
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И маленькое добавление. Часто этот вопрос слышу - что значит логотип VIA на компонентах Шимы и вроде на СРАМ тоже мелькает. Отвечаем: логотип сертификата, означающего допуск данного компонента на использование на дорогах Японии. Не больше и не меньше.
март 2007...