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| Category: | Rear Derailleurs |
| Name: | Simplex Prestige (variant version of AR637P/NI) |
| Brand: | Simplex |
| Model: | AR637P/NI |
| Years: | 1974 |
| Country: | France |
| Added By: | peterbman on 11/04/14 |
| Updated By: | peterbman on 11/04/14 |
Additional Photos - click for full size |
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 Verify Component Photos |
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| Outer Plate Markings | Simplex | Inner Plate Markings | |
| Material | | Design Category | |
| Attachment Bolt Size | | Cable Attachment Bolt Size | |
| Shifting Systems | | Cable Adjuster | |
| Cage Length | | Max Cog Size | |
| Max Chain Wrap | | | |
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.
