Simplex SX610 T (version 2)
Main Photo
Category:  Rear Derailleurs
Name:  Simplex SX610 T (version 2)
Brand:  Simplex
Model:  SX610 T
Years:  1983 - 1985
Country:  France
Weight:  275 grams
Added By: cinco on 11/04/07
Updated By: peterbman on 03/14/18
Additional Photos - click for full size
Simplex SX610 T (version 2)Simplex SX610 T (version 2)Simplex SX610 T (version 2)Simplex SX610 T (version 2)Simplex SX610 T (version 2)Simplex SX610 T (version 2)
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Outer Plate MarkingsPeugeot / SimplexInner Plate MarkingsBrevete Simplex S.G.D.G Made in france
MaterialAluminum Alloy; Plastic; SteelDesign CategoryInline parallelogram
Attachment Bolt SizeCable Attachment Bolt Size8mm Wrench
Shifting SystemsFrictionCable AdjusterYes
Cage LengthShortMax Cog Size28
Max Chain Wrap28  
General Information
Model is stamped on edge of front parallel plate. Adhesive "Peugeot" nameplate on this one, others have adhesive "Simplex" nameplate. Front parallel plate is stamped steel, rear is steel-reinforced plastic. Steel cage. Unthreaded hanger bolt. 
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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 4)BrandGroup
Gipiemme CronosprintGipiemmeCrono Sprint
Simplex SX610 GT (version 1)Simplex
Simplex SX630 TSimplex
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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