Simplex Juy 59
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Category:  Rear Derailleurs
Name:  Simplex Juy 59
Brand:  Simplex
Model:  Juy 59
Years:  1959 - 1960
Country:  France
Added By: peterbman on 05/20/14
Updated By: eaglerock on 07/21/15
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Simplex Juy 59Simplex Juy 59Simplex Juy 59Simplex Juy 59
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Outer Plate MarkingsSimplexInner Plate MarkingsJuy 59
MaterialSteelDesign CategoryRod
Attachment Bolt SizeCable Attachment Bolt Size
Shifting SystemsCable Adjuster
Cage LengthMax Cog Size26
Max Chain Wrap  
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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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