Sakae/Ringyo (SR) Silstar SI-S, Silstar Single SI-S
Main Photo
Category:  Cranksets
Name:  Sakae/Ringyo (SR) Silstar SI-S, Silstar Single SI-S
Brand:  Sakae/Ringyo (SR)
Primary Group:  Silstar Single SI-S
Model:  Silstar SI-S 6 3/4
Years:  Early 1980's - ?
Country:  Japan
Weight:  640 grams (Spec)
Added By: HansOberlander on 10/28/16
Updated By: HansOberlander on 11/25/16
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Sakae/Ringyo (SR) Silstar SI-S, Silstar Singl
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Chainring CountSingleBCD 
BB StyleSquare TaperPedal Threads
BB Length Flutes 
Lengths 170Arm/Spider MaterialAluminum Alloy; Steel
Front MarkingsBack Markings
Extractor Threading   
General Information
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Component Groups
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Silstar Single SI-SSakae/Ringyo (SR)View 1 Components
Brand Information(click to expand)
Date of Manufacturing / Production Code for SR seatposts (at least for the 80's):
The date of prodcution of SR (Laprade) seatposts is shown around the min.insert line as follows:
"letter"-"double digit number", e.g. F-81 oder L-81, while the letter should be the month and the number will be the year of production.
So F-81 seems to be June 1981 while L-81 would indicate December 1981.
(in-line with the code 1 examples on

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