Sakae/Ringyo (SR) Custom-P5A (Sakae Laprade; 190mm)
Main Photo
Category:  Seat Posts
Name:  Sakae/Ringyo (SR) Custom-P5A (Sakae Laprade; 190mm)
Brand:  Sakae/Ringyo (SR)
Primary Group:  Custom
Model:  CT-P5A
Years:  Early 1980's - Late 1980's
Country:  Japan
Weight:  250 grams (Spec),
SR Catalogue P-7 (1982)
Added By: simplex56 on 06/19/09
Updated By: Tombo on 05/13/16
Additional Photos - click for full size
Sakae/Ringyo (SR) Custom-P5A (Sakae Laprade; Sakae/Ringyo (SR) Custom-P5A (Sakae Laprade; Sakae/Ringyo (SR) Custom-P5A (Sakae Laprade; Sakae/Ringyo (SR) Custom-P5A (Sakae Laprade; Sakae/Ringyo (SR) Custom-P5A (Sakae Laprade;
Markingsat the top: "SR LAPRADE" (on both sides near the clamp) + at the min.-insert line: "MAX HT";
{diameter}; JAPAN;
{date code} (letter & double digit number);
MaterialLight Alloy
Shaft DesignAeroSaddle Attachment StyleSingle bolt
Saddle Attachment Bolt Size(s)6mm Allen KeyOverall Length 190mm
Max Height 120mmSetback 25mm
General Information
Available diameter: 26.2, 26.4, 26.6, 26.8, 27.0mm

Shaft and head are one piece aluminum alloy. 
Chrome plated steel bolt. 
Clamp and nut are probably aluminum.

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Additional Resources
Resources:Reference & ChartsCatalogs
Component VariationsView Detailed List  Manage Variations
Variations of Component exist (Component is 1 of 2)BrandGroup
Sakae/Ringyo (SR) Custom-P5A (Sakae Laprade; 220mm)Sakae/Ringyo (SR)Custom
Component Groups
Primary Group NameBrandQuick InfoBrowse Group Components
CustomSakae/Ringyo (SR)View 7 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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