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| Category: | Front Derailleurs |
| Name: | Simplex LJ 23 |
| Brand: | Simplex |
| Model: | LJ 23 |
| Years: | 1961 - 1963 |
| Country: | France |
| Added By: | JFischer on 10/21/07 |
| Updated By: | peterbman on 03/13/16 |
Additional Photos - click for full size |
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 Verify Component Photos |
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# Rings Designed For  | Double | Outer Plate Markings | Simplex logo |
| Inner Plate Markings | Brevete S.G.D.G Made In France | Clamp Markings | Simplex Logo |
| Inner Clamp Markings | None | Design Category | Pushrod |
| Pivot Arm Markings | N/A | Plate Material | Steel |
| Clamp Style | 28.6mm Clamp | Cable Attachment Bolt | 8mm Wrench |
| CableStop | No | Clamp Bolt Type | 8mm Wrench;
Flat Head Scewdriver |
| Max Ring Difference | | | |
| Component Variations | View Detailed List Manage Variations |
| Variations of Component exist (Component is 1 of 2) | Brand | Group |
| Simplex LJ 23 (2nd Version) | Simplex | |
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.
