Simplex 3637 L Demultiplicator
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Category:  Small Parts & Accessories
Name:  Simplex 3637 L Demultiplicator
Brand:  Simplex
Model:  3637 L
Years:  1960's - 1970's
Country:  France
Weight:  42 grams (Actual),
Digital kitchen scales
Added By: Slobike on 04/20/13
Updated By: Slobike on 04/20/13
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Simplex 3637 L DemultiplicatorSimplex 3637 L Demultiplicator
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Part Type AdapterIdentifying Markings Simplex sun logo
MaterialAluminum Alloy; Chromed Steel;
Location Downtube just above BB
General Information
This cable guide changes the amount of lever travel necessary to shift the rear derailleur.  Simplex also packaged this with their barcons & recommended it for tandems.  Left side fits front derailleur cable.
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Component VariationsView Detailed List  Manage Variations
Variations of Component exist (Component is 1 of 2)BrandGroup
Simplex 3637 L DemultiplicatorSimplex
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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