Simplex SX410 GT (long cage)
Main Photo
Category:  Rear Derailleurs
Name:  Simplex SX410 GT (long cage)
Brand:  Simplex
Model:  SX410 GT
Years:  1977 - 1985
Country:  France
Weight:  336 grams
Added By: cyclotoine on 03/07/08
Updated By: peterbman on 11/04/14
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Simplex SX410 GT (long cage)Simplex SX410 GT (long cage)
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Outer Plate MarkingsSimplexInner 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 LengthLongMax Cog Size36
Max Chain Wrap39t  
General Information
Model is stamped on edge of front parallel plate. Front parallel plate is stamped steel, rear is steel-reinforced plastic. Steel cage. Unthreaded hanger bolt. Replaced in the early 80's by a sloped parallelogram version: the SX610.
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Resources:Reference & ChartsCatalogsExternal Resources
Component VariationsView Detailed List  Manage Variations
Variations of Component exist (Component is 1 of 2)BrandGroup
Simplex SX410 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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