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| Category: | Hubs |
| Name: | SunTour RH-4000, Superbe (Track) |
| Brand: | SunTour |
| Primary Group: | Superbe Track |
| Model: | RH-4000 |
| Years: | Late 1970's - Early 1980's |
| Country: | Japan |
| Weight: | 495 grams (Spec), for the pair |
| Added By: | vxpro on 10/23/08 |
| Updated By: | JFischer on 12/08/09 |
Additional Photos - click for full size |
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 Verify Component Photos |
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Gear Compatibility  | Fixed Gear | Front Bearing Size/Count | |
| Rear Bearing Size/Count | | Rear Spacing | 120mm |
| Spoke Drilling | 28; 32; 36 | Flange Size | Low Flange |
| Gear Threading/Pattern | English/ISO: 1.375 x 24 TPI | Body Markings | SUPERBE |
| Axle Material | Steel | Shell Material | Aluminum |
| Component Variations | View Detailed List Manage Variations |
| Variations of Component exist (Component is 1 of 2) | Brand | Group |
| SunTour Superbe | SunTour | Superbe |
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)
