Sakae/Ringyo (SR) Four-Sir P5 (Laprade de luxe)
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Category:  Seat Posts
Name:  Sakae/Ringyo (SR) Four-Sir P5 (Laprade de luxe)
Brand:  Sakae/Ringyo (SR)
Primary Group:  FOURSIR
Model:  FS-P5
Years:  1980's - ?
Country:  Japan
Weight:  200 grams (Spec),
SR Catalogue P-7 (1982)
Added By: JFischer on 07/23/08
Updated By: Tombo on 05/13/16
Additional Photos - click for full size
Sakae/Ringyo (SR) Four-Sir P5 (Laprade de luxSakae/Ringyo (SR) Four-Sir P5 (Laprade de luxSakae/Ringyo (SR) Four-Sir P5 (Laprade de luxSakae/Ringyo (SR) Four-Sir P5 (Laprade de luxSakae/Ringyo (SR) Four-Sir P5 (Laprade de lux
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MarkingsSR Four-Sir LapradeMaterialAluminum
Shaft DesignFlutedSaddle Attachment StyleSingle bolt
Saddle Attachment Bolt Size(s)6mm Allen KeyOverall Length 190mm
Max Height Setback 
General Information
Available diameter from 25.8 to 27.2 in 0.2mm steps
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Additional Resources
Resources:Reference & ChartsCatalogs
Component Groups
Primary Group NameBrandQuick InfoBrowse Group Components
FOURSIRSakae/Ringyo (SR)View 2 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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