Simplex Ref. TS3640 (black & gold badge), SLJ
Main Photo
Category:  Seat Posts
Name:  Simplex Ref. TS3640 (black & gold badge), SLJ
Brand:  Simplex
Primary Group:  Super LJ
Model:  Ref. TS3640
Years:  Late 1960's - 1970's
Country:  France
Weight:  244 grams (Spec)
Added By: JFischer on 02/06/08
Updated By: 1989Pre on 01/05/19
Additional Photos - click for full size
Simplex Ref. TS3640 (black & gold badge), SLJSimplex Ref. TS3640 (black & gold badge), SLJ
MarkingsSimplex LogoMaterialSteel
Shaft DesignSmoothSaddle Attachment StyleSaddle clamp
Saddle Attachment Bolt Size(s)Overall Length 188mm
Max Height Setback 
General Information
26.0 to 27.2mm in .2mm increments.  Also made in a 240mm length.
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Additional Resources
Resources:Reference & ChartsCatalogsExternal Resources
Component VariationsView Detailed List  Manage Variations
Variations of Component exist (Component is 1 of 2)BrandGroup
Simplex (black & gold badge) variation 1Simplex
Component Groups
Primary Group NameBrandQuick InfoBrowse Group Components
Super LJSimplexRoad RaceView 27 Components
Details:   The best of the Simplex lines of components.  Consisted primarily of Front and Rear Derailleurs as well as Shifters.  The SLJ designation was also given to other parts occasionally such as seat posts.
Brand Information(click to expand)

Known for their black plastic (Delrin) derailleurs during the "bike boom" of the 1970's, they were at the forefront of innovation over the years, producing such highly regarded items as the Super LJ derailleurs, Retrofriction shifters, and very popular line of seat posts.

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