SunTour alpha-3000 SS
Back
Report
Main Photo
Category:  Rear Derailleurs
Name:  SunTour alpha-3000 SS
Brand:  SunTour
Model:  RD-3000SS
Years:  1987
Country:  Japan
Weight:  306 grams
Added By: JFischer on 10/16/07
Updated By: peterbman on 05/15/18
Additional Photos - click for full size
SunTour alpha-3000 SS
Outer Plate MarkingsSunTour a3000Inner Plate Markings
MaterialAluminum AlloyDesign Category
Attachment Bolt SizeBolt OnCable Attachment Bolt Size8mm Wrench
Shifting SystemsSunTour AccuShift
Friction
Cable AdjusterYes
Cage LengthShortMax Cog Size28
Max Chain Wrap  
General Information
6sp Accushift only works when paired with the a-3000 shifters!
Quality:Rarity:
 
 
See Incorrect Information? Log-in to submit report.  
Additional Resources
Marketplace:Looking to buy one of these?Sell one like this
Resources:Reference & ChartsCatalogsExternal Resources
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)

 
User Comments
Sign-in Required
  Loading Comments


By pressing Verify below, you express verification that the photos shown are indeed of the component listed. Please do not verify if you are not sure that all photos are of the correct item. If you identify a photo that is NOT of the correct item, please use the Report feature to flag that photo.

Note: You can not verify photos that you have uploaded.
Universal
VeloBase v.2.7.8 rev.5 - a Fischer Frameworks application, Copyright ¬© (2019) - All rights reserved.

Find the information on VeloBase.com useful? Please consider donating a few dollars towards the web-hosting cost. Thank you.