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Lewis (two pulleys; no upper pulley cage)
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Category:  Rear Derailleurs
Name:  Lewis (two pulleys; no upper pulley cage)
Brand:  Lewis
Model:  
Years:  N/A
Country:  France
Added By: Catnap on 03/14/14
Updated By: peterbman on 06/17/16
Additional Photos - click for full size
Lewis (two pulleys; no upper pulley cage)Lewis (two pulleys; no upper pulley cage)Lewis (two pulleys; no upper pulley cage)Lewis (two pulleys; no upper pulley cage)Lewis (two pulleys; no upper pulley cage)Lewis (two pulleys; no upper pulley cage)Lewis (two pulleys; no upper pulley cage)Lewis (two pulleys; no upper pulley cage)
 Verify Component Photos
Outer Plate MarkingsLewisInner Plate Markings
MaterialAluminum Alloy; SteelDesign CategoryChainstay mount
Attachment Bolt SizeCable Attachment Bolt Size
Shifting SystemsFrictionCable AdjusterNo
Cage LengthMediumMax Cog Size
Max Chain Wrap  
General Information
This is a 1936 Lewis "Grand Prix Duralumin" rear derailleur and matching shifter set. Shown with its original box including instructions and all hardware required to install and use it. 
The Lewis is very similar in design to the Cyclo, Nivex, Super champion, and Simplex chainstay-mounted derailleurs of the 1930's and 40's, borrowing a few different designs from each and blending them in a unique way.  The directions and box are illustrated with cool hand-drawn diagrams.
Robert van Driel: "Le Lewis parts were developed by constructeur Louis Villemus from the Rhône-Alpes area, the marque being a pun on his first name. These components were around from the mid 1930s to the late 1940s. Villemus was an oldtimer competing with youngsters like Herse and Singer in the Concourses of the 1940s. One of his machines won the Grand Prix Duralumin category "serie" in 1946. "Lewis" then joined company with the mighty Etienne Bernadet, who inspired a generation of builders through the Reyhand bikes he co-developed and rode to victory in 3 consecutive Grand Prix in the 1930s. Although he's largely forgotten, Villemus seems to have had some influence."
Quality:Rarity:
 
 
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