Simplex LJ (retro-friction)
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Category:  Shifters
Name:  Simplex LJ (retro-friction)
Brand:  Simplex
Model:  LJ4012
Years:  1975 - 1983
Country:  France
Weight:  89 grams (Spec)
Added By: JFischer on 12/01/09
Updated By: peterbman on 03/14/18
Additional Photos - click for full size
Simplex LJ (retro-friction)Simplex LJ (retro-friction)Simplex LJ (retro-friction)Simplex LJ (retro-friction)Simplex LJ (retro-friction)
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Shifter Type DowntubeAttachment Style Clamp-On
Shifting SystemsRetro-FrictionLever Markings
Lever MaterialPlastics  
General Information
Plastic Resin lever bodies.
Quality:Rarity:
 
 
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Additional Resources
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Resources:Reference & ChartsCatalogsExternal Resources
Component VariationsView Detailed List  Manage Variations
Variations of Component exist (Component is 1 of 2)BrandGroup
Gipiemme/Simplex 4012, LJ Series Retro-FrictionGipiemme
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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