Simplex SJ A223 (triple)
Main Photo
Category:  Front Derailleurs
Name:  Simplex SJ A223 (triple)
Brand:  Simplex
Model:  SJ A223
Years:  1984 - 1985
Country:  France
Weight:  126 grams
Added By: JFischer on 10/21/07
Updated By: peterbman on 03/13/16
Additional Photos - click for full size
Simplex SJ A223 (triple)Simplex SJ A223 (triple)Simplex SJ A223 (triple)Simplex SJ A223 (triple)
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# Rings Designed For TripleOuter Plate MarkingsS in star
Inner Plate MarkingsBrevete Made In FranceClamp Markings
Inner Clamp MarkingsDesign CategoryParallelogram
Pivot Arm MarkingsSimplexPlate MaterialSteel
Clamp Style28.6mm Clamp; Braze-on TabCable Attachment Bolt8mm Wrench
CableStop NoClamp Bolt Type8mm Wrench
Max Ring Difference 24T  
General Information

Appears this is the model number SJA 223, braze on post version.  Also known as the SJA 103 for clamp on applications.

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Component VariationsView Detailed List  Manage Variations
Variations of Component exist (Component is 1 of 2)BrandGroup
Simplex SJ A103 (Triple)Simplex
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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