Simplex Prestige (variant version of AR637P/NI)
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Main Photo
Category:  Rear Derailleurs
Name:  Simplex Prestige (variant version of AR637P/NI)
Brand:  Simplex
Model:  AR637P/NI
Years:  1974
Country:  France
Added By: peterbman on 11/04/14
Updated By: peterbman on 11/04/14
Additional Photos - click for full size
Simplex Prestige (variant version of AR637P/NSimplex Prestige (variant version of AR637P/NSimplex Prestige (variant version of AR637P/NSimplex Prestige (variant version of AR637P/N
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Outer Plate MarkingsSimplexInner Plate Markings
MaterialDesign Category
Attachment Bolt SizeCable Attachment Bolt Size
Shifting SystemsCable Adjuster
Cage LengthMax Cog Size
Max Chain Wrap  
General Information
Note- The picture with the with early and later model. Outer pulley cage has changed with a weight of 256 grams; also the spring tension bolts are smooth faced and better chromed
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Additional Resources
Marketplace:Looking to buy one of these?Sell one like this
Resources:Reference & ChartsCatalogsExternal Resources
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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