Simplex Prestige 637/p
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Category:  Rear Derailleurs
Name:  Simplex Prestige 637/p
Brand:  Simplex
Model:   Prestige 637/p
Years:  1970's - ?
Country:  France
Weight:  246 grams (Actual)
Added By: greenebike on 02/07/11
Updated By: peterbman on 03/28/14
Additional Photos - click for full size
Simplex  Prestige 637/pSimplex  Prestige 637/pSimplex  Prestige 637/pSimplex  Prestige 637/pSimplex  Prestige 637/pSimplex  Prestige 637/pSimplex  Prestige 637/pSimplex  Prestige 637/p
Outer Plate MarkingsSimplexInner Plate MarkingsPrestige-Simplex Brevete SGDG
MaterialPlastic; SteelDesign CategoryInline parallelogram
Attachment Bolt SizeClawCable Attachment Bolt Size
Shifting SystemsFrictionCable AdjusterNo
Cage LengthMax Cog Size28
Max Chain Wrap37 max teeth capacity  
General Information

Made of steel and delrin. Most common found omn the bike boom bikes. Model would work up to 6 gear changes with 1/8 or 3/32 chain

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

 

Quality:Rarity:
 
 
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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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