Simplex SLJ5500 GT (version 2)
Main Photo
Category:  Rear Derailleurs
Name:  Simplex SLJ5500 GT (version 2)
Brand:  Simplex
Primary Group:  Super LJ
Model:  SLJ5500 GT
Years:  1985 - 1990
Country:  France
Weight:  219 grams
Added By: nprenet on 11/27/07
Updated By: peterbman on 03/14/16
Additional Photos - click for full size
Simplex SLJ5500 GT  (version 2)
Outer Plate MarkingsSimplexInner Plate Markings
MaterialAluminum AlloyDesign Category
Attachment Bolt SizeCable Attachment Bolt Size
Shifting SystemsFrictionCable AdjusterNo
Cage LengthShortMax Cog Size39
Max Chain Wrap36  
General Information
Simplex Super LJ 5500 rear derailleur, long cage version.  One of the last versions of the Super LJ derailleur. Black anodized bolts with white plastic dust caps.  Mobile, black cable-stop on the upper part.
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Additional Resources
Resources:Reference & ChartsCatalogsExternal Resources
Component VariationsView Detailed List  Manage Variations
Variations of Component exist (Component is 1 of 3)BrandGroup
Gipiemme SpecialGipiemmeSpecial (Strada)
Simplex SLJ5500 (version 1)SimplexSuper LJ
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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