SunTour BB-300, Superbe (Track)
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Category:  Bottom Brackets
Name:  SunTour BB-300, Superbe (Track)
Brand:  SunTour
Primary Group:  Superbe Track
Model:  BB-300
Years:  1977 - ?
Country:  Japan
Weight:  295 grams (Spec)
Added By: JFischer on 07/20/07
Updated By: Don Buska on 05/28/17
Additional Photos - click for full size
SunTour BB-300, Superbe (Track)
Bearing Size/Count per side1/4" / 9x9Spindle MarkingsSuperbe 68-S
Fixed Cup MarkingsSuperbe 'thread value' JapanAdjustable Cup MarkingsSuperbe 'thread value' Japan
Spindle StyleSquare Taper (ISO)Axle MaterialSteel
Available ThreadingsEnglish/ISO: 1.370 x 24;
French: 35mm x 1mm;
Italian: 36mm x 24
Length(s)108mm (per 1978 Catalog)
Tools NeededSpanner, Locknut Wrench and Fixed Cup Wrench  
General Information
In photo, the Superbe Cups and spindle are shown. The BB-300 is the Superbe Pista bottom bracket.

These bottom brackets were manufactured by Sugino, as were the Superbe cranksets. This information is useful for correctly dating these components as they do not align with the Suntour date codes. 


Source for dating courtesy of Vintage Trek. There are several different formats that were used by Sugino. (for example... Suntour Superbe bottom brackets seem to use Code 1, while Superbe crank arms utilize Code 5. This is not confirmed to hold true for all BB's and cranksets, so please use best judgement to identify which format and time period most closely aligns with your component.) 

http://www.vintage-trek.com/component_dates.htm


Quality:Rarity:
 
 
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Additional Resources
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Resources:Reference & ChartsCatalogsExternal Resources
Component Groups
Primary Group NameBrandQuick InfoBrowse Group Components
Superbe TrackSunTourTrackView 9 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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