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Simplex Stem Shifter
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Category:  Shifters
Name:  Simplex Stem Shifter
Brand:  Simplex
Model:  SXPL 4191
Years:  Late 1970's - Early 1980's
Country:  France
Weight:  154 grams (Actual)
Added By: jurones on 11/12/08
Updated By: onespeedbiker on 02/16/13
Additional Photos - click for full size
Simplex Stem ShifterSimplex Stem ShifterSimplex Stem Shifter
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Shifter Type StemAttachment Style Clamp-On
Shifting SystemsFrictionLever Markings"S BREV." "S" "Made in France" "Simplex"
Lever MaterialAluminum; Plastics; Steel  
General Information
This stem shifter appeared in Simplex 1979 Catalog. Typical of stem shifters it had quite long levers, and these levers had plastic inserts riveted on both sides of the lever (this allowed Simplex to make a single reversible lever, however they had different part numbers as each set needed the rivet heads to match even though one was the reverse of the other). The shifter pictured is missing the Simplex sticker that resided in rectangular relief in the black plastic cover. There were two similar styles of  this shifter, the one pictured (the SXPL 4191) had a small plastic gear and insert that worked as a ratchet. Since the retro-friction shifters appear in the same 1979 catalog this appears to be cheaper attempt towards the same end. The similar stem shifter was the SXP 4190, which looked pretty much the same, with only a few cosmetic differences, but lacked the ratchet mechanism making it a strait forward friction shifter.
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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