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Category: | Rear Derailleurs |
Name: | Simplex SX300 T |
Brand: | Simplex |
Primary Group: | SX |
Model: | SX 300 T |
Years: | 1975 - 1977 |
Country: | France |
Weight: | 279 grams (Actual), for version with direct attachment, with hanger: 292g |
Added By: | tmundry67 on 01/26/22 |
Updated By: | tmundry67 on 01/28/22 |
Additional Photos - click for full size |
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Verify Component Photos |
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Outer Plate Markings | Simplex | Inner Plate Markings | Simplex / Brevete / S.G.D.G. / Made in France |
Material | Plastic; Steel | Design Category | Inline parallelogram |
Attachment Bolt Size | Simplex Special Bolt for threadless Simplex Dropouts | Cable Attachment Bolt Size | 8mm Wrench |
Shifting Systems | Friction | Cable Adjuster | No |
Cage Length | Short | Max Cog Size | 30 |
Max Chain Wrap | 30 | |   |
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.