| Country: | France | Primary Focus: | |
| Years of Operation: | 1928 - 1995 |
| General Information |
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. |
| History |
First started with a 2 speed rear derailleur. Le Simplex was produced by Lucian Juy, ran a bike shop in Dijon.
they had numerous models over the years-
Tour de France
Juy 51
Juy 543
Record 60
Criterium
Prestige
Super LJ
Super Competition
Bankrupt in 1985 ,they have resurfaced a few times since then.
The marking "Brevete SDGD" = Patent Sans Garantie Du Gouvernement. More explicitly SDGD patents are issued "without prior examination, at the peril of applicants, and without warranty of the reality, novelty or merit of the invention, the fidelity or the accuracy of the description.
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| Frame Parts - Recent Added / Updated |
| Name | Category | Added / Updated |
| Simplex 3480/3481 | Drop Outs & Fork Ends | 02/18/2017 |
| Simplex 4266/4267 | Drop Outs & Fork Ends | 02/18/2017 |
| Simplex 4264/4265 | Drop Outs & Fork Ends | 02/18/2017 |
| Simplex S806 | Drop Outs & Fork Ends | 02/18/2017 |
 Simplex Frame Parts List |
| Photo Selection from Recently Updated Items |
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| Additional Resources |
| Catalog Name | Source | File Size | Date Added |
| Simplex 1984 Catalog | VeloBase | 2,615kB | 1/5/2009 |
| Simplex Sept. 1975 Catalog | Velo-Pages.com | N/A | 12/1/2009 |
| 1982 Simplex Catalog | VeloBase | 2,522kB | 11/4/2011 |
| Resource Link | Category | Details | |
| Simplex collection | Brand Specific Websites | Collection of Simplex parts, well photographed, with japanese descriptions. |
